Multi-Channel Free-Space Optics Receiver Enabled by a Programmable Photonic Processor
SeyedMohammad SeyedinNavadeh, Maziyar Milanizadeh, Francesco Zanetto, Vittorio Grimaldi, Christian De Vita, Charalambos Klitis, Marc Sorel, Giorgio Ferrari, David A. B. Miller, Andrea Ivano Melloni, Francesco Morichetti · 2022
A silicon photonic programmable processor of reconfigurable Mach-Zehnder interferometers is used to receive pairs of orthogonal spatially-overlapped beams modulated, sharing the same wavelength and polarization. The processor can automatically separate the two beams without any excess loss and no prior information on the incoming beams.