Sub-banded / single-sub-carrier drop-demux and flexible spectral shaping with a fine resolution photonic processor

Abstract

Spectral processor based on arrayed waveguide grating and free-space manipulation is capable of arbitrary filtering at record metrics of 0.8GHz resolution over 200GHz span. Narrowband coherent drop-demultiplexing and controlled optical shaping is demonstrated in unison with digital sub-banding.