@article {15135,
	title = {Sub-GHz Resolution Photonic Spectral Processor andits System Applications},
	journal = {Journal of Lightwave Technology},
	volume = {35},
	number = {11},
	year = {2017},
	pages = {2218-2226},
	abstract = {A record performance metric waveguide grating\&nbsp;router (WGR) design with a 200 GHz free spectral range (FSR)\&nbsp;capable of resolving sub-GHz resolution spectral features is developed\&nbsp;for a fine resolution photonic spectral processor (PSP). The\&nbsp;WGR{\textquoteright}s FSR was designed to support subchannel add/drop from\&nbsp;a superchannel of 1 Tb/s capacity. Due to fabrication imperfections,\&nbsp;we introduce phase corrections to the light beams emergingfrom the 250 waveguides of the WGR output using a liquid crystal\&nbsp;on silicon (LCoS) phase spatial light modulator (SLM) placed\&nbsp;in an imaging configuration. A second LCoS SLM is located at\&nbsp;the Fourier plane, for arbitrary spectral amplitude and phase manipulations.\&nbsp;The PSP is utilized in multiple system transmission\&nbsp;experiments, such as flexible spectral shaping and subcarrier drop\&nbsp;demultiplexing with sub-GHz spectral resolution.},
	author = {Roy Rudnick and Alexander Tolmachev and David Sinefeld and Ori Golani and Shalva Ben-Ezra and Moshe Nazarathy and Dan M. Marom}
}
@article {12472,
	title = {Survey of Photonic SwitchingArchitectures and Technologies inSupport of Spatially and SpectrallyFlexible Optical Networking},
	journal = {Journal of Optical Communications and Networking},
	volume = {9},
	number = {1},
	year = {2017},
	pages = {1-26},
	abstract = {As traffic volumes carried by optical networks continue to grow by tens of percent year over year, we are rapidly approaching the capacity limit of the conventional communication band within a single-mode fiber. New measures such as elastic optical networking, spectral extension to multi-bands, and spatial expansion to additional fiber overlays or new fiber types are all being considered as potential solutions, whether near term or far. In this tutorial paper, we survey the photonic switching hardware solutions in support of evolving optical networking solutions enabling capacity expansion based on the proposed approaches. We also suggest how reconfigurable add/drop multiplexing nodes will evolve under these scenarios and gauge their properties and relative cost scalings. We identify that the switching technologies continue to evolve and offer network operators the required flexibility in routing information channels in both the spectral and spatial domains. New wavelength-selective switch designs can now support greater resolution, increased functionality and packing density, as well as operation with multiple input and output ports. Various switching constraints can be applied, such as routing of complete spatial superchannels, in an effort to reduce the network cost and simplify the routing protocols and managed pathway count. However, such constraints also reduce the transport efficiency when the network is only partially loaded, and may incur fragmentation. System tradeoffs between switching granularity and implementation complexity and cost will have to be carefully considered for future high-capacity SDM{\textendash}WDM optical networks. In this work, we present the first cost comparisons, to our knowledge, of the different approaches in an effort to quantify such tradeoffs.},
	url = {https://www.osapublishing.org/jocn/abstract.cfm?uri=jocn-9-1-1},
	author = {Dan M. Marom and Paul D. Colbourne and Antonio D{\textquoteright}Errico and Nicolas K. Fontaine and Yuichiro Ikuma and Roberto Proietti and Liangjia Zong and Jos{\'e} M. Rivas-Moscoso and Ioannis Tomkos}
}
@article {8497,
	title = {Fine resolution Photonic Spectral Processor Using a Waveguide Grating Router with Permanent Phase Trimming},
	journal = {Journal of Lightwave Technology},
	volume = {34},
	number = {2},
	year = {2016},
	pages = {379-385},
	abstract = {Spectrally dispersed light from a fine resolution waveguide grating router (WGR) of 25-GHz free spectral range that radiates to free space is spatially filtered at ~1 GHz optical resolution and 50 MHz spectral addressability using a liquid crystal on Silicon (LCoS) spatial light modulator (SLM). Fabrication imperfections leading to phase errors on the 32 waveguide arms of the WGR are corrected using a UV pulsed laser to inscribe permanent optical path changes to the waveguides. WGR phase errors are permanently trimmed waveguide-by-waveguide with an excimer laser by inducing stress in the glass cladding above the waveguide for coarse setting and using the photosensitivity effect for fine setting. The WGR was then mated with an LCoS SLM located at the Fourier plane to form a photonic spectral processor, for arbitrary spectral amplitude and phase manipulations.},
	url = {http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=7358043},
	author = {Noam Goldshtein and David Sinefeld and Ori Golani and Roy Rudnick and Leonid Pascar and Roy Zektzer and Dan M. Marom}
}
@article {8498,
	title = {Flexible Optical Cross-Connects for High Bit Rate Elastic Photonic Transport Networks},
	journal = {Journal of Optical Communications and Networking},
	volume = {8},
	number = {7},
	year = {2016},
	pages = {A126-A140 },
	abstract = {We present here the work performed in the EU-funded flexible optical cross-connect (FOX-C) project, which investigates and develops new flexible optical switching solutions with ultra-fine spectral granularity. Thanks to high spectral resolution filtering elements, the sub-channel content can be dropped from or added to a super-channel, offering high flexibility to optical transport networks through the fine adaptability of the network resources to the traffic demands. For the first time, the FOX-C solutions developed in the project are investigated here and evaluated experimentally. Their efficiency is demonstrated over two high spectral efficiency modulation schemes, namely multi-band orthogonal frequency division multiplexing (MB-OFDM) and Nyquist WDM (N-WDM) formats. Finally, in order to demonstrate the relevance of the FOX-C node concepts, a networking study comparing the economic advantages of the FOX-C optical aggregation solution versus the electronic one is performed.},
	url = {https://www.osapublishing.org/jocn/abstract.cfm?uri=jocn-8-7-A126},
	author = {Mengdi Song and Erwan Pincemin and Arne Josten and Benedikt B{\"a}uerle and David Hillerkuss and Juerg Leuthold and Roy Rudnick and Dan M. Marom and Shalva Ben-Ezra and Jordi F. Ferran and Giles Thouenon and Pouria Sayyad Khodashenas and Jos{\'e} Manuel Rivas-Moscoso and Christophe Betoule and Dimitrios Klonidis and Ioannis Tomkos}
}
@article {8495,
	title = {Investigation of Spectrum Granularity for Performance Optimization of Flexible Nyquist-WDM-Based Optical Networks},
	journal = {Journal of Lightwave Technology},
	volume = {33},
	number = {23},
	year = {2015},
	pages = {4767-4774},
	abstract = {The idea behind flexible optical transmission is to optimize the use of fiber capacity by flexibly assigning spectrum and data rate adapted to the needs of end-to-end connection requests. Several techniques have been proposed to this end. One such technique is based on the utilization of Nyquist-shaping filters with the aim of reducing the required channel spacing in flexible single-carrier and super-channel optical transmission systems. Nonetheless, the imperfect shape of the filters used at the bandwidth-variable transceivers and wavelength-selective switches compels the necessity to allocate a certain spectral guard band between (sub-)channels. Bearing this is mind, in this paper, we focus on the evaluation of the network-level performance, in terms of the filter characteristics and the WDM frequency-grid granularity, of flexible Nyquist-WDM-based transmission. We demonstrate that a granularity of 6.25 GHz offers a good compromise between network performance and filter requirements for spectrum assignment to single-carrier and super-channel signals. However, for subchannel allocation within a super-channel, granularities as fine as 3.125 GHz are required to take advantage of filters with resolutions in the region of 1-1.2 GHz. Finer filter resolutions and frequency slot granularities provide negligible performance improvement.},
	url = {http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=7297800},
	author = {Pouria Sayyad Khodashenas and Jos{\'e} Manuel Rivas-Moscoso and Behnam Shariati and Dan M. Marom and Dimitrios Klonidis and Ioannis Tomkos}
}
@article {8493,
	title = {Numerical investigation of all-optical add-drop multiplexing for spectrally overlapping OFDM signals},
	journal = {Optics Express},
	volume = {23},
	number = {5},
	year = {2015},
	pages = {5888-5897},
	abstract = {We propose a novel architecture for all-optical add-drop multiplexing of OFDM signals. Sub-channel extraction is achieved by means of waveform replication and coherent subtraction from the OFDM super-channel. Numerical simulations have been carried out to benchmark the performance of the architecture against critical design parameters.},
	url = {https://www.osapublishing.org/oe/abstract.cfm?uri=oe-23-5-5888},
	author = {Stylianos Sygletos and Simon Fabbri and E. Giacoumidis and M. Sorokina and Dan M. Marom and M. F. C. Stephens and Dimitrios Klonidis and Ioannis Tomkos and Andrew D. Ellis}
}
@article {8496,
	title = {Spatial Aperture-Sampled Mode Multiplexer Extended to Higher Mode Count Fibers},
	journal = {Journal of Lightwave Technology},
	volume = {33},
	number = {23},
	year = {2015},
	pages = {4805-4814},
	abstract = {Efficient mode division multiplexing using the spatial aperture sampled concept from single-modefibers to a few-mode fiber is extended to circular step index fibers supporting up to ten spatial modes and to annular refractive index profile fibers supporting nine optical orbital angular momentum modes (mode counts double when considering polarization states for each case). Each sampling beam aperture is spatially shaped for lower average coupling losses and mode dependent losses or a balance thereof. The optimization demonstrates the scalability and consistent low losses for the aperture-sampled mode multiplexer for increasing mode counts, as opposed to the phase hologram-based mode conversion technique. The aperture-sampling approach is also found to be robust to small input fiber alignment errors and fiber geometrical distortions.},
	url = {http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=7132686},
	author = {Miri Blau and Dan M. Marom}
}
@article {8494,
	title = {Switching Solutions for WDM-SDM Optical Networks},
	journal = {IEEE Communications Magazine},
	volume = {53},
	number = {25},
	year = {2015},
	pages = {60-68},
	abstract = {Over the last few decades, network traffic has consistently grown at an exponential rate and was efficiently satisfied using WDM and more efficient coding schemes requiring coherent detection. There is no indication that the network traffic growth trend will cease anytime soon, and we are nearing the day when the capacity of the ubiquitous single-mode fiber will be fully exploited. Space-domain multiplexing (SDM) for high-capacity transmission is the promising solution with the scaling potential to meet future capacity demands. However, there is still a large technological gap between current WDM optical communication system designs and SDM network implementations. In this article we lay the foundation of switching node designs for future WDM-SDM optical networks.},
	url = {http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=7045392},
	author = {Dan M. Marom and Miri Blau}
}
@article {8492,
	title = {Wavelength-selective switch with direct few mode fiber integration},
	journal = {Optics Express},
	volume = {23},
	number = {5},
	year = {2015},
	pages = {5723-5737},
	abstract = {The first realization of a wavelength-selective switch (WSS) with direct integration of few mode fibers (FMF) is fully described. The free-space optics FMF-WSS dynamically steers spectral information-bearing beams containing three spatial modes from an input port to one of nine output ports using a phase spatial light modulator. Sources of mode dependent losses (MDL) are identified, analytically analyzed and experimentally confirmed on account of different modal sensitivities to fiber coupling in imperfect imaging and at spectral channel edges due to mode clipping. These performance impacting effects can be reduced by adhering to provided design guidelines, which scale in support of higher spatial mode counts. The effect on data transmission of cascaded passband filtering and MDL build-up is experimentally investigated in detail.},
	url = {https://www.osapublishing.org/oe/abstract.cfm?uri=oe-23-5-5723},
	author = {Dan M. Marom and Jonathan Dunayevsky and David Sinefeld and Miri Blau and Roland Ryf and Nicolas K. Fontaine and M. Montoliu and Sebastian Randel and Liu, C. and B. Ercan and Mina Esmaeelpour and S. Chandrasekhar and Alan H. Gnauck and S. G. Leon-Saval and Joss Bland-Hawthorn and J. R. Salazar-Gil and Y. Sun and Lars Gr{\"u}ner-Nielsen and Robert Lingle, Jr.}
}
@article {8489,
	title = {Full-field reconstruction of ultrashort waveforms by time to space conversion interferogram analysis},
	journal = {Optics Express},
	volume = {22},
	number = {17},
	year = {2014},
	pages = {20205-20213},
	abstract = {Accurate amplitude and phase measurements of ultrashort optical waveforms are essential for their use in a wide range of scientific disciplines. Here we report the first demonstration of full-field optical reconstruction of ultrashort waveforms using a time-to-space converter, followed by a spatial recording of an interferogram. The algorithm-free technique is demonstrated by measuring ultrashort pulses that are widely frequency chirped from negative to positive, as well as phase modulated pulse packets. Amplitude and phase measurements were recorded for pulses ranging from 0.5 ps to 10 ps duration, with measured dimensionless chirp parameter values from -30 to 30. The inherently single-shot nature of time-to-space conversion enables full-field measurement of complex and non-repetitive waveforms.},
	url = {https://www.osapublishing.org/oe/abstract.cfm?uri=oe-22-17-20205},
	author = {Dror Shayovitz and Harald Herrmann and Wolfgang Sohler and Raimund Ricken and Christine Silberhorn and Dan M. Marom}
}
@article {8491,
	title = {Real-time coherent detection of phase modulated ultrashort pulses after time-to-space conversion and spatial demultiplexing},
	journal = {Optics Express},
	volume = {22},
	number = {25},
	year = {2014},
	pages = {31138-31145},
	abstract = {Phase modulated sub-picosecond pulses are converted by a time-to-space processor to quasi-monochromatic spatial beams that are spatially demultiplexed and coherently detected in real-time. The time-to-space processor, based on sum-frequency generation (SFG), serves as a serial-to-parallel converter, reducing the temporal bandwidth of the ultrashort pulse to match the bandwidth of optoelectronic receivers. As the SFG process is phase preserving, we demonstrate homodyne coherent detection of phase modulated temporal pulses by mixing the demultiplexed SFG beam with a narrow linewidth local oscillator (LO) resulting in single-shot phase detection of the converted pulses at a balanced detector. Positively and negatively phase-modulated signal pulses are individually detected and LO shot noise limited operation is achieved. This demonstration of real-time demultiplexing followed by single-shot full-field detection of individual pulses, highlights the potential of time-to-space conversion for ultrahigh bit rate optical communications and data processing applications.},
	url = {https://www.osapublishing.org/oe/abstract.cfm?uri=oe-22-25-31138},
	author = {Dror Shayovitz and Harald Herrmann and Wolfgang Sohler and Raimund Ricken and Christine Silberhorn and Dan M. Marom}
}
@article {8490,
	title = {Variable optical attenuator and dynamic mode group equalizer for few mode fibers},
	journal = {Optics Express},
	volume = {22},
	number = {25},
	year = {2014},
	pages = {30520-30527},
	abstract = {Variable optical attenuation (VOA) for three-mode fiber is experimentally presented, utilizing an amplitude spatial light modulator (SLM), achieving up to -28dB uniform attenuation for all modes. Using the ability to spatially vary the attenuation distribution with the SLM, we also achieve up to 10dB differential attenuation between the fiber{\textquoteright}s two supported mode group (LP01 and LP11). The spatially selective attenuation serves as the basis of a dynamic mode-group equalizer (DME), potentially gain-balancing mode dependent optical amplification. We extend the experimental three mode DME functionality with a performance analysis of a fiber supporting 6 spatial modes in four mode groups. The spatial modes{\textquoteright} distribution and overlap limit the available dynamic range and performance of the DME in the higher mode count case.},
	url = {https://www.osapublishing.org/oe/abstract.cfm?uri=oe-22-25-30520},
	author = {Miri Blau and Israel Weiss and Jonathan Gerufi and David Sinefeld and Moran Bin-Nun and Robert Lingle and Lars Gr{\"u}ner-Nielsen and Dan M. Marom}
}
@article {417,
	title = {Tunable WDM sampling pulse streams using a spatialphase modulator in a biased pulse shaper},
	journal = {Optics Letters},
	volume = {39},
	number = {3},
	year = {2014},
	pages = {642-645},
	abstract = {We generate transform-limited WDM optical sampling pulse bursts by filtering ultrashort pulses from a mode-locked laser. A phase spatial light modulator (SLM) is used in a biased pulse shaper to circumvent the need to modulate with 2π phase wraps, which are known to limit the phase response. The arrangement compresses and retimes user-selectable bandwidths from the optical short pulse source with precise control of pulse bandwidth, pulse stream rates, and duty cycle.},
	url = {https://www.osapublishing.org/ol/abstract.cfm?uri=ol-39-3-642},
	author = {David Sinefeld and Dror Shayovitz and Ori Golani and Dan M. Marom}
}
@article {401,
	title = {OFDM/WDM PON With Laserless,Colorless 1 Gb/s ONUs Basedon Si-PIC and Slow IC},
	journal = {Journal of Optical Communications and Networking},
	volume = {6},
	number = {3},
	year = {2014},
	pages = {225-237},
	abstract = {We introduce a next-generation long-reach access optical network (35 dB loss budget 2 dB margin) delivering up to 40G/40G per passive 1:256 optical distribution network, supportingsymmetrical1 Gb/s rates perhome user or up to 40 Gb/s for business users (e.g., enterprises, antenna sites). The proposed system is based on a novel spectrally efficient orthogonal frequency division multiplexing/ wavelength division multiplexingOFDM/WDMarchitecture symmetrically using 16-QAM OFDM polarization diversity in both the downstream and upstream in order to serve low-cost energy-efficient symmetric 1 Gb/s optical network units (ONUs), which are self-coherent, laserless, colorless, and tunable-filter-free. Each ONU comprises a standard semiconductor optical amplifier (SOA), a silicon-based photonic integrated circuit (PIC), and mixed-signal electronic integrated circuits (ICs) performing the signal processing at a relatively slow rate as compared with the overall passive optical network (PON) throughput: digital to analog converters (DACs) and analog to digital converters (ADCs) at 417 MS/s for the home user ONUs.},
	url = {https://www.osapublishing.org/jocn/abstract.cfm?uri=jocn-6-3-225},
	author = {A. Agmon and M. Nazarathy and D. M. Marom and S. Ben-Ezra and A. Tolmachev and R. Killey and P. Bayvel and L. Meder and M. H{\"u}bner and W. Meredith and G. Vickers and P. C. Schindler and R. Schmogrow and D. Hillerkuss and W. Freude and C. Koos and J. Leuthold}
}
@article {406,
	title = {Spatial Superchannel Routing in a Two-SpanROADM System for Space Division Multiplexing},
	journal = {Journal of Lightwave Technology},
	volume = {32},
	number = {4},
	year = {2014},
	pages = {783-789},
	abstract = {We report a two-span, 67-km space-divisionmultiplexed (SDM) wavelength-division-multiplexed (WDM) system incorporating the first reconfigurable optical add{\textendash}drop multiplexer (ROADM) supporting spatial superchannels and the first cladding-pumped multicore erbium-doped fiber amplifier directly spliced to multicore transmission fiber. The ROADM subsystem utilizes two conventional 1 {\texttimes} 20 wavelength selective switches (WSS) each configured to implement a 7 {\texttimes} (1 {\texttimes} 2) WSS. ROADM performance tests indicate that the subchannel insertion losses, attenuation accuracies, and passband widths are well matched to each other and show no significant penalty, compared to the conventional operating mode for the WSS. For 6 {\texttimes} 40 {\texttimes} 128-Gb/sSDM-WDMpolarization-multiplexed quadrature phaseshift- keyed (PM-QPSK) transmission on 50 GHz spacing, optical signal-to-noise ratio penalties are less than 1.6 dB in Add, Drop, and Express paths. In addition, we demonstrate the feasibility of utilizing joint signal processing of subchannels in this two-span, ROADM system.},
	url = {http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6623116},
	author = {L. E. Nelson and M. D. Feuer and K. Abedin and X. Zhou and T. F. Taunay and J. M. Fini and B. Zhu and R. Isaac and R. Harel and G. Cohen and D. M. Marom}
}
@article {351,
	title = {A photonic ADC using phase modulation and spatial oversampling},
	journal = {Optics Express},
	volume = {22},
	number = {10},
	year = {2014},
	abstract = {We propose a new type of photonic analog-to-digital converter (ADC), designed for high-resolution (\&gt;7 bit) and high sampling rates (scalable to tens of GS/s). It is based on encoding the input analog voltage signal onto the phase of an optical pulse stream originating from a modelocked laser, and uses spatial oversampling as a means to improve the conversion resolution. This paper describes the concept of spatial oversampling and draws its similarities to the commonly used temporal oversampling. The design and fabrication of a LiNbO3/silica hybrid photonic integrated circuit for implementing the spatial oversampling is shown, and its abilities are demonstrated experimentally by digitizing gigahertz signals (frequencies up to 18GHz) at an undersampled rate of 2.56GS/s with a conversion resolution of up to 7.6 effective bits. Oversampling factors of 1-4 are demonstrated.},
	url = {https://www.osapublishing.org/oe/abstract.cfm?uri=oe-22-10-12273},
	author = {Ori Golani and Luca Mauri and Fabiano Pasinato and Cristian Cattaneo and Guido Consonnni and Stefano Balsamo and Dan M. Marom}
}
@article {414,
	title = {Time-to-space conversion of ultrafast waveformsat 1.55 μm in a planarperiodically poled lithium niobate waveguide},
	journal = {Optics Letters},
	volume = {38},
	number = {22},
	year = {2013},
	pages = {4708-4711},
	abstract = {We report the first demonstration, to our knowledge, of time-to-space conversion of subpicosecond pulses in a slab nonlinear waveguide. By vertically confining the nondegenerate sum-frequency generation interaction between a spatially dispersed 100 fs signal pulse at 1.55 μm and a reference pulse in a titanium indiffused planar periodically poled lithium niobate crystal waveguide, we have attained a conversion efficiency of 0.1\% and a conversion efficiency slope of 4\% per watt of reference beam power. This was achieved while maintaining high conversion resolution, with a measured time window of operation of 48 ps resulting in a serial-to-parallel demultiplexing factor of 90. {\textcopyright} 2013 Optical Society of America},
	url = {https://www.osapublishing.org/ol/abstract.cfm?uri=ol-38-22-4708},
	author = {Dror Shayovitz and Harald Herrmann and Wolfgang Sohler and Raimund Ricken and Christine Silberhorn and Dan M. Marom}
}
@article {403,
	title = {Effective permittivity and third-order nonlinearsusceptibility for a dilute composite consistingof partially aligned nanorods},
	journal = {Journal of the Optical Society of America B},
	volume = {30},
	number = {7},
	year = {2013},
	pages = {1864-1871},
	abstract = {The expected permittivity and third-order nonlinear susceptibility of a composite consisting of semiconductor nanorods (NRs) dispersed in a polymer host are derived using a generalized Maxwell Garnett model under various NR axis orientation statistics, achieved by an aligning electric field. The semiconductor NRs are analyzed as prolate spheroids and modeled as more realistic capsule shapes. From the angular distribution function of the NRs, the composite macroscopic characteristics are found for low filling fractions. As the alignment field strength increases, the composite optical properties asymptotically converge toward the nematic case. Aligning fields of order 107 V/m are required for the optical properties to increase to half the value between random orientation and nematic array composites. {\textcopyright} 2013 Optical Society of America},
	url = {https://www.osapublishing.org/josab/abstract.cfm?uri=josab-30-7-1864},
	author = {Yedidya Lior and Dan M. Marom}
}
@article {399,
	title = {MEMS Spatial Light Modulator for Phase andAmplitude Modulation of SpectrallyDispersed Light},
	journal = {Journal of Microelectromechanical Systems},
	volume = {22},
	number = {5},
	year = {2013},
	pages = {1213-1221},
	abstract = {We present a new micro-electro-mechanical system (MEMS) spatial light modulator (SLM) with a two-dimensional array of tightly-spaced square micromirrors (or pixels) designed to sag (or piston motion). This diffractive MEMS modulator is to be used for independently applying amplitude attenuation and phase control to spectrally-dispersed light along one dimension. The spectral phase and amplitude modulator operate in conjunction with a dispersive optical setup, where spatially resolved frequency components are to be incident onto and independently modulated by the device. The MEMS design is based on two common actuators per array column, in order to set the two degrees of freedom of amplitude and phase for every spectral component. This MEMS SLM is thus optimal in actuator/electrode count, especially when compared to conventional SLM where each pixel is independently actuated. The MEMS sag range is compatible with near-IR wavelengths used in the fiber-optic communication band.},
	url = {http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6547158},
	author = {Jonathan Dunayevsky and Dan M. Marom}
}
@article {400,
	title = {Nyquist-WDM filter shaping with a high-resolutioncolorless photonic spectral processor},
	journal = {Optics Letters},
	volume = {38},
	number = {17},
	year = {2013},
	pages = {3268-3271},
	abstract = {We employ a spatial-light-modulator-based colorless photonic spectral processor with a spectral addressability of 100 MHz along 100 GHz bandwidth, for multichannel, high-resolution reshaping of Gaussian channel response to square-like shape, compatible with Nyquist WDM requirements. {\textcopyright} 2013 Optical Society of America},
	url = {https://www.osapublishing.org/ol/abstract.cfm?uri=ol-38-17-3268},
	author = {David Sinefeld and Shalva Ben-Ezra and Dan M. Marom}
}
@article {415,
	title = {High resolution time-to-space conversion of subpicosecond pulses at 1.55μm by non-degenerate SFG in PPLN crystal},
	journal = {Optics Express},
	volume = {20},
	number = {24},
	year = {2012},
	pages = {27388-27395},
	abstract = {We demonstrate high resolution and increased efficiency background-free time-to-space conversion using spectrally resolved non-degenerate and collinear SFG in a bulk PPLN crystal. A serial-to-parallel resolution factor of 95 and a time window of 42 ps were achieved. A 60 fold increase in conversion efficiency slope compared with our previous work using a BBO crystal [D. Shayovitz and D. M. Marom, Opt. Lett. 36, 1957 (2011)] was recorded. Finally the measured 40 GHz narrow linewidth of the output SFG signal implies the possibility to extract phase information by employing coherent detection techniques. {\textcopyright}2012 Optical Society of America},
	url = {https://www.osapublishing.org/ol/abstract.cfm?uri=ol-36-11-1957},
	author = {Dror Shayovitz and Dan M. Marom}
}
@article {407,
	title = {Generation of WDM adaptive-rate pulse burstsby cascading narrow/widebandtunable optical dispersion compensators},
	journal = {Optics Letters},
	volume = {37},
	number = {20},
	year = {2012},
	pages = {4290-4292},
	abstract = {We demonstrate passive generation of optical pulse trains with each pulse having distinct center carrier and spectra using tunable group delay (GD) staircase transfer functions. The GD steps result from opposite and equal magnitude GD slopes from narrowband and wideband tunable optical dispersion compensators. We use this technique to split the spectrum of a femtosecond pulse to a pulse burst with precise control of pulse time separation. {\textcopyright} 2012 Optical Society of America},
	url = {https://www.osapublishing.org/ol/abstract.cfm?uri=ol-37-20-4290},
	author = {David Sinefeld and Yiska Fattal and Dan M. Marom}
}
@article {391,
	title = {Optimization of Spatial Aperture-Sampled ModeMultiplexer for a Three-Mode Fiber},
	journal = {Photonics Technology Letters},
	volume = {24},
	number = {23},
	year = {2012},
	pages = {2101-2104},
	abstract = {An optimization procedure for spatial mode multiplexing from individual single-mode fibers into a three-mode fiber based on a spatial aperture sampling concept has been developed. By placing space-variant imaging elements between the single-mode and few-mode fibers, each beam aperture can be shaped for lower loss coupling and low mode-dependent losses. The optimization achieves a record theoretical -1.5-dB insertion loss, improving on the previous theoretical -2-dB record.},
	url = {http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6316069},
	author = {Miri Blau and Dan M. Marom}
}
@article {418,
	title = {A photonic spectral processor employing two-dimensional WDM channel separation and a phase LCoS modulator},
	journal = {Optics Express},
	volume = {19},
	number = {15},
	year = {2011},
	pages = {14532-14541},
	abstract = {We present a Photonic Spectral Processor (PSP) that provides both fine spectral resolution and broad bandwidth support by dispersing light over two-dimensional space using the crossed-grating approach. The PSP uses a hybrid guided wave/free-space optics arrangement, where a waveguide grating router implemented in silica waveguides disperses the light in one dimension with a 100 GHz FSR and a bulk 1200 gr/mm diffraction grating disperses the light along the second (crossed) dimension. The diffracted light is focused by a lens onto a liquid-crystal on silicon, two-dimensional, phase-only, spatial light modulator, which we use to prescribe phase and amplitude to the signal{\textquoteright}s spectral components. With the 2-D PSP arrangement we are able to address frequency components at 0.2 GHz/column with an optical resolution of 3.3 GHz covering 40 C-band channels. {\textcopyright}2011 Optical Society of America},
	url = {https://www.osapublishing.org/oe/abstract.cfm?uri=oe-19-15-14532},
	author = {David Sinefeld and Christopher R. Doerr and Dan M. Marom}
}
@article {411,
	title = {Airy-soliton interactions in Kerr media},
	journal = {Optics Express},
	volume = {19},
	number = {25},
	year = {2011},
	pages = {25570-25582},
	abstract = {We investigate and analyze temporal soliton interactions with a dispersive truncated Airy pulse traveling in a nonlinear fiber at the same center wavelength (or frequency), via split step Fourier numerical simulation. Truncated Airy pulses, which remain self-similar during propagation and have a ballistic trajectory in the retarded time frame, can interact with a nearby soliton by its accelerating wavefront property. We find by tracking the fundamental parameters of the emergent soliton-time position, amplitude, phase and frequency{\textemdash}that they alter due to the primary collision with the Airy main lobe and the continuous copropagation with the dispersed Airy background. These interactions are found to resemble coherent interactions when the initial time separation is small and incoherent at others. This is due to spectral content repositioning within the Airy pulse, changing the nature of interaction from coherent to incoherent. Following the collision, the soliton intensity oscillates as it relaxes. The initial parameters of the Airy pulse such as initial phase, amplitude and time position are varied to better understand the nature of the interactions. {\textcopyright}2011 Optical Society of America OCIS codes: (190.0190) Nonlinear},
	url = {https://www.osapublishing.org/oe/abstract.cfm?uri=oe-19-25-25570},
	author = {Amitay Rudnick and Dan M. Marom*}
}
@article {413,
	title = {High-resolution, background-free, time-to-spaceconversion by collinearlyphase-matched sum-frequency generation},
	journal = {Optics Letters},
	volume = {36},
	number = {11},
	year = {2011},
	pages = {1957-1959},
	abstract = {We report the first demonstration, to our knowledge, of time-to-space conversion of 1.55 μm femtosecond optical pulses using nondegenerate, collinearly phase-matched sum-frequency generation. A quasi-monochromatic and background-free output signal spanning a time window of 35 ps and with a pulse image width of 350 fs was achieved. The resulting serial-to-parallel resolution factor of 100 demonstrates the potential for all-optical complete frame demultiplexing of a 1 Tbit-s optical time-division multiplexing bit stream. {\textcopyright} 2011 Optical Society of America},
	url = {https://www.osapublishing.org/ol/abstract.cfm?uri=ol-36-11-1957},
	author = {Dror Shayovitz and Dan M. Marom}
}
@article {409,
	title = {Soliton shedding from Airy pulses in Kerr media},
	journal = {Optics Express},
	volume = {19},
	number = {18},
	year = {2011},
	pages = {17298-17307},
	abstract = {We simulate and analyze the propagation of truncated temporal Airy pulses in a single mode fiber in the presence of self-phase modulation and anomalous dispersion as a function of the launched Airy power and truncation coefficient. Soliton pulse shedding is observed, where the emergent soliton parameters depend on the launched Airy pulse characteristics. The Soliton temporal position shifts to earlier times with higher launched powers due to an earlier shedding event and with greater energy in the Airy tail due to collisions with the accelerating lobes. In spite of the Airy energy loss to the shed Soliton, the Airy pulse continues to exhibit the unique property of acceleration in time and the main lobe recovers from the energy loss (healing property of Airy waveforms). {\textcopyright}2011 Optical Society of America},
	url = {https://www.osapublishing.org/oe/abstract.cfm?uri=oe-19-18-17298},
	author = {Yiska Fattal and Amitay Rudnick and Dan M. Marom}
}
@article {416,
	title = {Tunable fiber ring laser with an intracavityhigh resolution filter employingtwo-dimensional dispersion and LCoS modulator},
	journal = {Optics Letters},
	volume = {37},
	number = {1},
	year = {2011},
	pages = {1-3},
	abstract = {We demonstrate a tunable fiber ring laser employing a two-dimensional dispersion arrangement filter, with the lasing determined by a liquid crystal on silicon (LCoS) spatial light modulator. Lasing wavelengths can be tuned discontinuously across the communication C-band at an addressable resolution of less than 200 MHz. We introduce full characterization of the laser output including phase and amplitude stability and short and long-term bandwidth measurements. {\textcopyright} 2011 Optical Society of America},
	url = {https://www.osapublishing.org/ol/abstract.cfm?uri=ol-37-1-1},
	author = {David Sinefeld and Dan M. Marom}
}
@article {393,
	title = {All-channel tunable optical dispersion compensatorbased on linear translation of a waveguide grating router},
	journal = {Optics Letters},
	volume = {36},
	number = {8},
	year = {2011},
	pages = {1410-1412},
	abstract = {We propose and demonstrate a compact tunable optical dispersion compensation (TODC) device with a 100 GHz free spectral range capable of mitigating chromatic dispersion impairments. The TODC is based on longitudinal movement of a waveguide grating router, resulting in chromatic dispersion compensation of 1000 ps/nm. We employed our TODC device for compensating 42.8 Gbit/sec differential phase-shifting keying signal, transmitted over 50km fiber with a -2 dB power penalty at 10-9.},
	url = {https://www.osapublishing.org/ol/abstract.cfm?uri=ol-36-8-1410},
	author = {David Sinefeld and Shalva Ben-Ezra and Christopher R. Doerr and Dan M. Marom}
}
@article {396,
	title = {Insertion Loss and Crosstalk Analysis of a Fiber Switch Based on a Pixelized Phase Modulator},
	journal = {Journal of Lightwave Technology},
	volume = {29},
	number = {1},
	year = {2011},
	pages = {69-77},
	abstract = {We analyze the performance of a spatial fiber switching system when using a pixelized mirror, such as a LCoS or MEMS spatial light modulator, in place of a large tilting micromirror. Our findings demonstrate the dependence of insertion losses on tilt angles or fiber counts, and the dependence of the crosstalk in the number of phase quantization levels and random phase errors. The former effects can be minimized by satisfying a relationship between the tilt angle to a fiber, the pitch of the array, and the optical wavelength.},
	url = {http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5629343},
	author = {David Sinefeld and Dan M. Marom}
}
@article {394,
	title = {Hybrid Guided-Wave/Free-Space Optics PhotonicSpectral Processor Based on LCoS Phase OnlyModulator},
	journal = {Phtonics Technology Letters},
	volume = {22},
	number = {7},
	year = {2010},
	pages = {510-512},
	abstract = {We propose and demonstrate a photonic spectral processor for applying arbitrary spectral phase and amplitude at high resolution with a 100-GHz free-spectral range for colorless wavelength-division-multiplexing adaptive filtering applications. The system employs free-space optics for projecting the dispersed light coming out of a planar-lightwave circuit onto a phase spatial-light modulator. The processor achieves 3-GHz optical resolution over 75-GHz usable bandwidth, with 557-MHz addressable granularity.},
	url = {http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5404727},
	author = {David Sinefeld and Dan M. Marom}
}
@article {8510,
	title = {Enabling Devices using MicroElectroMechanical System (MEMS) Technology for Optical Networking},
	journal = {Advances in Science and Technology},
	volume = {55},
	year = {2008},
	pages = {145-149},
	abstract = {Optical communication systems are the premier conduit for providing broadband data across continents, nations, cities, neighborhoods, and are now starting to penetrate into private homes. This spectacular achievement is the culmination of years of research and development efforts in diverse fields. Recently we are witnessing the evolution of these communication systems towards optical networking. The advent of optical networking has been enabled by a suite of complementary optical subsystems that are pivotal to the operation and management of these networks. These optical microsystems directly interact with the optical signal and-through functionality afforded by design-are able to filter, switch, attenuate, and adapt the optical communication channels carried by the network. In this talk I will review a sampling of these enabling devices and focus on the MEMS technology required for its implementation.},
	url = {http://www.scientific.net/AST.55.145},
	author = {Dan M. Marom}
}
@article {402,
	title = {Compact Colorless Tunable Dispersion Compensatorwith 1000-ps/nm Tuning Rangefor 40-Gb/s Data Rates},
	journal = {Journal of Lightwave Technology},
	volume = {24},
	number = {1},
	year = {2006},
	pages = {237-241},
	abstract = {A novel tunable dispersion compensator (TDC) with {\textpm}500-ps/nm tuning range and bandwidth support for 40-Gb/s signals is described. The TDC is constructed from a waveguide grating router (WGR) that provides very high spatial dispersion and a deformable cylindrical mirror for applying quadratic spatial phase across the dispersed wavefront. The WGR{\textquoteright}s 100-GHz free-spectral range (FSR) allows the device to simultaneously apply the same dispersion to all wavelength-division multiplexing (WDM) channels.},
	url = {http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=1589053},
	author = {Dan M. Marom and Christopher R. Doerr and Mark A. Cappuzzo and Evans Yifan Chen and A. Wong-Foy and L. T. Gomez and S. Chandrasekhar}
}
@article {392,
	title = {Wavelength Selective Switchingfor Optical Bandwidth Management},
	journal = {Bell Labs Technical Journal},
	volume = {11},
	number = {2},
	year = {2006},
	pages = {105{\textendash}128},
	abstract = {Optical transport capacities have grown significantly in the last decade to meet the increased demands on communications networks. This growth has been achieved both by increases in individual channel rates, which are based on time division multiplexing (TDM), and by increased channel counts, through the use of dense wavelength division multiplexing (DWDM). Yet increasing optical transport capacity alone is insufficient to scale the network; the underlying data needs to be delivered from numerous geographically diverse originating locations to similarly diverse terminating locations, requiring increasing switching capacity to facilitate this networking need. Since the growth in the individual TDM channel rates is driven by the capabilities of electronics, it is reasonable to expect that the switching capacity of electronics will tend to track this trend, although because of the challenges in high data rate interconnects it is unlikely to exceed it. This leaves the challenge of managing the increased bandwidth attained through the use of DWDM. Management of this bandwidth in the optical layer is an attractive proposition if eliminating unnecessary high-speed electronics in the path of an optical signal can reduce the complexity of the network and the associated equipment costs. These optical bandwidth management elements are classified according to the degree of switching, as either reconfigurable optical add/drop multiplexers (ROADM) or wavelength selective cross-connects (WSXC), analogous to the add/drop multiplexers and digital cross-connects of the TDM domain. We generalize these elements and describe whether the switching provides functions that are multicolored, colorless, or colored, and whether the channels are fixed data rate or rateless. We review the wavelength selective switch (WSS) components that perform the necessary switching function and present two successful technology platforms that can be used to construct them: planar lightwave circuits (PLC) and micro-electromechanical systems (MEMS). We also discuss future directions for WSS technologies and device functionality to more flexibly manage bandwidth in the optical layer. {\textcopyright} 2006 Lucent Technologies Inc.},
	url = {http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=6769747},
	author = {David T. Neilson and Christopher R. Doerr and Dan M. Marom and Roland Ryf and Mark P. Earnshaw}
}
@article {419,
	title = {Wavelength-Selective 1 X K Switches UsingFree-Space Optics and MEMS Micromirrors:Theory, Design, and Implementation},
	journal = {JOURNAL OF LIGHTWAVE TECHNOLOGY},
	volume = {23},
	number = {4},
	year = {2005},
	pages = {1620-1630},
	abstract = {The design and performance of several generations of wavelength-selective 1 X K switches are reviewed. These optical subsystems combine the functionality of a demultiplexer, per-wavelength switch, and multiplexer in a single, low-loss unit. Free-space optics is utilized for spatially separating the constituent wavelength division multiplexing (WDM) channels as well as for space-division switching from an input optical fiber to one of K output fibers (1 X K functionality) on a channel-by-channel basis using a microelectromechanical system (MEMS) micromirror array. The switches are designed to provide wide and flat pass- bands for minimal signal distortion. They can also provide spectral equalization and channel blocking functionality, making them well suited for use in transparent WDM optical mesh networks.},
	url = {http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=1424138},
	author = {Dan M. Marom and David T. Neilson and Member, OSA and Dennis S. Greywall and Chien-Shing Pai and Nagesh R. Basavanhally and Vladimir A. Aksyuk and Daniel O. L{\'o}pez and Flavio Pardo and Maria Elina Simon and Yee Low and Paul Kolodner and Cristian A. Bolle}
}
@article {8507,
	title = {MEMS-based channelized dispersion compensator with flat passbands},
	journal = {Journal of Lightwave Technology},
	volume = {22},
	number = {1},
	year = {2004},
	pages = {101-105},
	abstract = {This paper describes a continuously variable and independently addressable channelized dispersion compensator. The optical system is a free-space grating-based system used in a four-pass configuration to ensure flat passbands. The variable dispersion is produced by an array of thermally adaptable curvature micromechanical mirrors. A per-channel variable dispersion greater than +/-400 ps/nm has been demonstrated, with 58 GHz +/-0.4 dB flat passband on 85 GHz spacing. The group delay ripple is less than 7 ps and the penalty with 40 Gb/s CSRZ is 0.7 dB.},
	url = {http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=1266683},
	author = {David T. Neilson and Roland Ryf and Flavio Pardo and Vladimir A. Aksyuk and Maria Elina Simon and Daniel O. L{\'o}pez and Dan M. Marom and S. Chandrasekhar}
}
@article {404,
	title = {All-Optical Wavelength Conversion Using aPulse Reformatting Optical Filter},
	journal = {JOURNAL OF LIGHTWAVE TECHNOLOGY},
	volume = {22},
	number = {1},
	year = {2004},
	pages = {186-192},
	abstract = {We introduce a general concept for the design of all-optical wavelength converters with pulse reformatting functionality. The novel wavelength converters are based on a single semiconductor optical amplifier followed by an optical filter. A microelectromechanical system-based realization is shown and simultaneous 40 Gb/s wavelength conversion, switching and signal format conversion is demonstrated. The new pulse reformatting optical filter device outperforms current schemes with respect to input-power requirements, input-power dynamic range and signal quality.},
	url = {http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=1266693},
	author = {Juerg Leuthold and Dan M. Marom and Steven Cabot and James J. Jaques and Roland Ryf and C. Randy Giles}
}
@article {395,
	title = {Attenuation mechanism effect on filter shapein channelized dynamic spectral equalizers},
	journal = {APPLIED OPTICS},
	volume = {43},
	number = {1},
	year = {2004},
	pages = {127-131},
	abstract = {Free-space-based channelized dynamic spectral equalizers are theoretically investigated by solving the temporal-frequency-dependent power-coupling integral for commonly used active device technologies: liquid-crystal modulators, tilting micromirror arrays, and deformable gratings. Channel-filter characteristics, such as bandwidth and interchannel transition, are found to depend on the different attenuation mechanisms provided by the active devices. Such information is required for choosing the proper device parameters in designing channel equalizers and similar free-space spatially dispersed subsystems.},
	url = {https://www.osapublishing.org/ao/abstract.cfm?uri=ao-43-1-127},
	author = {Sang-Hyun Oh and Dan M. Marom}
}
@article {8506,
	title = {Hybrid pulse position modulation/ultrashort light pulse code-division multiple-access systems-part II: time-space processor and modified schemes},
	journal = {IEEE Transactions on Communications},
	volume = {51},
	number = {7},
	year = {2003},
	pages = {1135-1148},
	abstract = {In part I, we proposed and investigated a hybrid pulse position modulation/ultrashort light pulse code-division multiple-access (PPM/ULP-CDMA) system for ultrafast optical communication networks. In this scheme, the large bandwidth of a ULP is efficiently utilized by virtue of the very high time resolution of a time-space processor. More detailed analysis and discussion on the receiver scheme using the time-space processor is now presented; nonideal performance of the time-space processor, including the reference pulse realization problem, as well as amplifier and detector noise, are taken into account. Discussions on physically achievable ranges of the system parameters that determine the performance of the proposed PPM/ULP-CDMA system are also made based upon current, state of the art technology. As remedies to overcome the physical limitations on the system parameters, two modified modulation/demodulation schemes are proposed and investigated to enhance the performance of the hybrid PPM/ULP-CDMA system.},
	url = {http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=1214835},
	author = {Kwang Soon Kim and Dan M. Marom and Lawrence B. Milstein and Yeshaiahu Fainman}
}
@article {397,
	title = {Monolithic Fringe-Field-Activated Crystalline SiliconTilting-Mirror Devices},
	journal = {JOURNAL OF MICROELECTROMECHANICAL SYSTEMS},
	volume = {12},
	number = {5},
	year = {2003},
	pages = {702-707},
	abstract = {A new approach is presented for fabricating monolithic crystalline silicon tilting-mirror microoptoelectromechanical systems (MOEMS) devices. The activation electrodes, etched from a thick silicon layer deposited over insulating oxide onto the top surface of a silicon-on-insulator (SOI) wafer, are displaced from the mirrors and interact with these tilting elements via electrostatic fringing fields. In contrast to the more usual parallel-plate activation, the rotation angle saturates at high voltages. This paper discusses concept, design, and processing, and also compares modeling and measured performance of a specific 9 tilt range device array.},
	url = {http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=1240141},
	author = {Dennis S. Greywall and Chien-Shing Pai and Sang-Hyun Oh and Chorng-Ping Chang and Dan M. Marom and Paul A. Busch and Raymond A. Cirelli and J. Ashley Taylor and Fred P. Klemens and Thomas W. Sorsch and John Eric Bower and Warren Y.-C. Lai and Hyongsok T. Soh}
}
@article {8505,
	title = {Hybrid pulse position modulation/ultrashort light pulse code-division multiple-access systems-part I: Fundamental analysis},
	journal = {IEEE Transactions on Communications},
	volume = {50},
	number = {12},
	year = {2002},
	pages = {2018-2031},
	abstract = {We propose a hybrid pulse position modulation/ultrashort light pulse code-division multiple-access (PPM/ULP-CDMA) system for ultrafast optical communications. The proposed system employs spectral CDMA encoding/decoding and PPM with very short pulse separation. The statistical properties of the encoded ULP are investigated with a general pulse model, and the performance of the proposed PPM/ULP-CDMA system is investigated. It is shown that we can improve upon the performance of other ULP-CDMA systems, such as those using on-off keying, by employing PPM. It is also shown that we can improve the performance of the proposed system by increasing the effective number of chips, by increasing the number of PPM symbols, and by reducing the ULP duration. The performance analysis shows that the aggregate throughput of the proposed PPM/ULP-CDMA system could be over 1 Tb/s.},
	url = {http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=1175479},
	author = {Kwang Soon Kim and Dan M. Marom and Lawrence B. Milstein and Yeshaiahu Fainman}
}
@article {398,
	title = {Linear and nonlinear operationof a time-to-space processor},
	journal = {Journal Of Optical Society of America},
	volume = {18},
	number = {2},
	year = {2001},
	abstract = {aging of ultrafast waveforms are investigated. We assess the effects of various system parameters on the processor{\textquoteright}s important attributes: time window of operation and signal conversion efficiency. Both linear and nonlinear operation regimes are considered, with use of a Gaussian pulse profile and a Gaussian spatial mode model. This model enables us to define a resolution measure for the processor, which is found to be an important characteristic. When the processor is operated in the linear interaction regime, we find that the conversion efficiency of a temporal signal to a spatial image is inversely proportional to the resolution measure. In the nonlinear interaction regime, nonuniform signal conversion due to fundamental wave depletion gives rise to a phenomenon that can be used to enhanced the imaging operation. We experimentally verify this nonlinear operation. {\textcopyright} 2001 Optical Society of America},
	url = {https://www.osapublishing.org/josaa/abstract.cfm?uri=josaa-18-2-448},
	author = {Dan M. Marom and Dmitriy Panasenko and Pang-Chen Sun and Yeshaiahu Fainman}
}
@article {405,
	title = {Real-Time Spatial{\textendash}Temporal Signal ProcessingWith Optical Nonlinearities},
	journal = {IEEE Journal on Selected Topics in Quantum Electronics},
	volume = {7},
	number = {4},
	year = {2001},
	pages = {683-693},
	abstract = {The instantaneous response time of parametric optical nonlinearities enable real-time processing of, and interaction between, spatial and temporal optical waveforms. We review the various signal-processing alternatives based on three- and fourwave- mixing arrangements among spatial and temporal information carrying waveforms. The fast response time of the interaction permits information exchange between the time and space domains, providing the ability to correlate and convolve signals from the two domains.We demonstrate the usefulness of real-time signal processing with optical nonlinearities with the following experiments: converting waveforms from the time to space domain as well as from the space to time domain, spectral phase conjugation and spectral inversion of ultrafast waveforms, transmission of the spatial correlation function on an ultrafast waveform, and a suggestion for a single-shot triple autocorrelation measurement.},
	url = {http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=974240},
	author = {Dan M. Marom and Dmitriy Panasenko and Pang-Chen Sun and Yuri T. Mazurenko and Yeshaiahu Fainman}
}
@article {8509,
	title = {Reply to Comment on {\textquoteleft}Time reversal of ultrafast waveforms by wave mixing spectrally decomposed waves{\textquoteright}},
	journal = {Optics Letters},
	volume = {25},
	number = {16},
	year = {2000},
	pages = {1209},
	abstract = {In response to a comment on our Letter [Opt. Lett.\&nbsp;25, 132 (2000)], we reiterate the distinction between the spectral inversion and the spectral phase conjugation processing techniques. The former achieves time reversal of the complex amplitude waveform, whereas the latter performs time reversal of the real electric field.},
	url = {https://www.osapublishing.org/ol/abstract.cfm?uri=ol-25-16-1209},
	author = {Dan M. Marom and Dmitriy Panasenko and Rostislav Rokitski and Pang-Chen Sun and Yeshaiahu Fainman}
}
@article {410,
	title = {Femtosecond-rate space-to-time conversion},
	journal = {Journal Of The Optical Society Of America},
	volume = {17},
	number = {10},
	year = {2000},
	pages = {1759- 1773},
	abstract = {A real-time spatial-{\textendash}temporal processor based on cascaded nonlinearities converts space-domain images to time-domain waveforms by the interaction of spectrally decomposed ultrashort pulses and spatially Fourier-transformed images carried by quasi-monochromatic light waves. We use four-wave mixing, achieved by cascaded second-order nonlinearities with type II noncollinear phase matching, for femtosecond-rate processing. We present a detailed analysis of the nonlinear mixing process with waves containing wide temporal and angular bandwidths. The wide bandwidths give rise to phase-mismatch terms in each process of the cascade. We define a complex spatial{\textendash}temporal filter to characterize the effects of the phase-mismatch terms, modeling the deviations from the ideal system response. New experimental results that support our findings are presented. {\textcopyright} 2000 Optical Society of America},
	url = {https://www.osapublishing.org/josab/abstract.cfm?uri=josab-17-10-1759},
	author = {Dan Marom and Dmitriy Panasenko and Pang-Chen Sun and Yeshaiahu Fainman}
}
@article {412,
	title = {Time reversal of ultrafast waveforms by wave mixing ofspectrally decomposed waves},
	journal = {OPTICS LETTERS},
	volume = {25},
	number = {2},
	year = {2000},
	pages = {132-134},
	abstract = {Two different realizations of time-reversal experiments of ultrafast waveforms are carried out in real time by use of four-wave mixing arrangements of spectrally decomposed waves. The first, conventional, method is based on phase conjugation of the waveform{\textquoteright}s spectrum and achieves time reversal of real amplitude waveforms. The second arrangement of the spectrally decomposed waves spatially inverts the waveform{\textquoteright}s spectrum with respect to the optical axis of the processor and achieves true time reversal for complex-amplitude ultrafast waveforms. We compare and contrast these two real-time techniques.  2000 Optical Society of America},
	url = {https://www.osapublishing.org/ol/abstract.cfm?uri=ol-25-2-132},
	author = {Dan Marom and Dmitriy Panasenko and Rostislav Rokitski and Pang-Chen Sun and Yeshaiahu Fainman}
}
@article {8508,
	title = {Instantaneous processing of ultrafast waveforms by wave mixing spectrally decomposed waves},
	journal = {Optics and Photonics News},
	volume = {12},
	number = {12},
	year = {1999},
	pages = {41-42},
	url = {https://www.osapublishing.org/opn/abstract.cfm?uri=opn-10-12-41},
	author = {Dan M. Marom and Dmitriy Panasenko and Rostislav Rokitski and Pang-Chen Sun and Yeshaiahu Fainman}
}
@article {8504,
	title = {Spatial-temporal wave mixing for space-to-time conversion},
	journal = {Optics Letters},
	volume = {24},
	number = {8},
	year = {1999},
	pages = {563-565},
	abstract = {A real-time spatial{\textendash}temporal processor based on cascaded nonlinearities converts space-domain images to time-domain waveforms by the interaction of spectrally decomposed ultrashort pulses and spatially Fourier-transformed images carried by quasi-monochromatic light waves. We use four-wave mixing, achieved by cascaded second-order nonlinearities with type II noncollinear phase matching, for femtosecond-rate processing. We present a detailed analysis of the nonlinear mixing process with waves containing wide temporal and angular bandwidths. The wide bandwidths give rise to phase-mismatch terms in each process of the cascade. We define a complex spatial{\textendash}temporal filter to characterize the effects of the phase-mismatch terms, modeling the deviations from the ideal system response. New experimental results that support our findings are presented.},
	url = {https://www.osapublishing.org/ol/abstract.cfm?uri=ol-24-8-563},
	author = {Dan M. Marom and Dmitriy Panasenko and Pang-Chen Sun and Yeshaiahu Fainman}
}
@article {8502,
	title = {All-optical stage of an Omega network},
	journal = {Applied Optics},
	volume = {37},
	number = {29},
	year = {1998},
	pages = {6946-6950},
	abstract = {All-optical multistage interconnection networks are desirable for overcoming the limitations of optical signal regeneration in switching systems. We present a new implementation of the perfect-shuffle interconnection pattern that is coupled with an all-optical switching element, forming a complete stage of a multistage network. Switching is performed with birefringent calcite crystals and a ferroelectric liquid-crystal device, while interconnection is achieved with a space-semivariant imaging configuration. Cascading the layout allows this system to be used to construct an all-optical multistage interconnection network. An experimental demonstration of the stage is presented.},
	url = {https://www.osapublishing.org/ao/abstract.cfm?uri=ao-37-29-6946},
	author = {Dan M. Marom and Naim Konforti and David Mendlovic}
}
@article {8503,
	title = {Folded free-space polarization-controlled multistage interconnection network},
	journal = {Applied Optics},
	volume = {37},
	number = {29},
	year = {1998},
	pages = {6884-6891},
	abstract = {We present a folded free-space polarization-controlled optical multistage interconnection network (MIN) based on a dilated bypass{\textendash}exchange switch (DBS) design that uses compact polarization-selective diffractive optical elements (PDOE{\textquoteright}s). The folded MIN design has several advantages over that of the traditional transparent MIN, including compactness, spatial filtering of unwanted higher-order diffraction terms leading to an improved signal-to-noise ratio (SNR), and ease of alignment. We experimentally characterize a folded 2 {\texttimes} 2 switch, as well as a 4 {\texttimes} 4 and an 8 {\texttimes} 8 folded MIN that we have designed and fabricated. We fabricated an array of off-axis Fresnel lenslet PDOE{\textquoteright}s with a 30:1 SNR and used it to construct a 2 {\texttimes} 2 DBS with a measured SNR of 60:1. Using this PDOE array in a 4 {\texttimes} 4 MIN resulted in an increased SNR of 120:1, highlighting the filtering effect of the folded design.},
	url = {https://www.osapublishing.org/ao/abstract.cfm?uri=ao-37-29-6884},
	author = {Dan M. Marom and Paul E. Shames and Fang Xu and Yeshaiahu Fainman}
}
@article {390,
	title = {Analysis of spatial{\textendash}temporalconverters for all-optical communication links},
	journal = {APPLIED OPTICS},
	volume = {37},
	number = {14},
	year = {1998},
	pages = {2858-2868},
	abstract = {We analyze parallel-to-serial transmitters and serial-to-parallel receivers that use ultrashort optical pulses to increase the bandwidth of a fiber-optic communication link. This method relies on real-time holographic material for conversion of information between spatial and temporal frequencies. The analysis reveals that the temporal output of the pulses will consist of chirped pulses, which has been verified experimentally. When the signal pulses are transmitted along with a reference pulse, the distortions of the received signal, caused by dispersion and other factors in the fiber, are canceled because of the phase-conjugation property of the receiver. This self-referencing scheme simplifies the receiver structure and ensures perfect timing for the serial-to-parallel conversion. {\textcopyright} 1998 Optical Society of America},
	url = {https://www.osapublishing.org/ao/abstract.cfm?uri=ao-37-14-2858},
	author = {Dan M. Marom and Pang-Chen Sun and Yeshaiahu Fainman}
}
@article {8501,
	title = {Comment on a new routing algorithm for a class of rearrangeable networks},
	journal = {IEEE Transactions on Computers},
	volume = {46},
	number = {6},
	year = {1997},
	pages = {734},
	abstract = {The original paper presents an efficient algorithm for routing an Omega-1\&nbsp;{\texttimes}\&nbsp;Omega nonblocking network. This comment presents an extra step required to route an Omega+Omega network.},
	url = {http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=600891},
	author = {Dan M. Marom and David Mendlovic}
}
@article {8500,
	title = {Compact, all-optical, bypass-exchange switch},
	journal = {Applied Optics},
	volume = {35},
	number = {2},
	year = {1996},
	pages = {248-253},
	abstract = {An electronically or optically addressed compact optical bypass{\textendash}exchange switch is investigated and experimentally demonstrated. The switch is polarization based and consists of a controllable λ/2 plate sandwiched between two polarizing beam displacers. The input and the output signals propagate normal to the switching array, which makes the switch extremely attractive for cascading switching arrays, as found in multistage interconnect networks. A complete, all-optical interconnection network is suggested.},
	url = {https://www.osapublishing.org/ao/abstract.cfm?uri=ao-35-2-248},
	author = {Dan M. Marom and David Mendlovic}
}
