@mastersthesis {10633,
	title = {Waveguide Grating Router PhaseTrimming for a Fine ResolutionPhotonic Spectral Processor},
	year = {2015},
	type = {MSc thesis},
	abstract = {Spectrally dispersed light from a fine resolution waveguide grating router (WGR) of 25\&nbsp;GHz free spectral range (FSR) that radiates to free-space is spatially filtered at ~1 GHz\&nbsp;resolution using a liquid crystal on Silicon (LCoS) spatial light modulator (SLM).\&nbsp;Fabrication imperfections leading to phase errors on the 32 waveguide arms of the\&nbsp;WGR are measured by the pair-wise far-field interference of adjacent waveguide pairs.\&nbsp;The phase errors are then corrected using a UV pulsed laser to inscribe permanent\&nbsp;optical path changes to the waveguides. WGR phase errors are permanently trimmed\&nbsp;waveguide-by-waveguide with an excimer laser by inducing stress in the glass cladding\&nbsp;above the waveguide for coarse setting and using the photosensitivity effect for fine\&nbsp;setting. The WGR was then mated with an LCoS SLM located at the Fourier plane to\&nbsp;form a photonic spectral processor (PSP), for arbitrary spectral amplitude and phase\&nbsp;manipulations.},
	url = {http://hufind.huji.ac.il/Record/HUJ001999875},
	author = {Noam Goldshtein}
}
