High resolution spectral processor implemented with two-dimensional WDM channel separation and active LCoS modulator for phase and amplitude manipulations

We propose and demonstrate a spectral phase and amplitude modulator spanning full 2D-space by crossing a 100 GHz WGR and a 1200 gr/mm bulk grating. We address individual WDM channels with high resolution (4.5 GHz) and addressability (0.2 GHz). We demonstrate the functionality of this novel Photonic Spectral Processor by applying different CD and attenuation values per WDM channel.