@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}
}
