Optical receiving assembly and optical module

Abstract

An optical receiving assembly and an optical module. The optical receiving assembly includes a free-space wavelength division demultiplexer having a multiplexed signal input port and at least two multiplexed signal output ports, so that when the multiplexed signal input port receives an optical signal having a plurality of adjacent wavebands, at least one of the multiplexed signal output ports outputs an optical signal having nonadjacent wavebands; and a photonic integrated chip on which a wavelength division demultiplexer is integrated. The optical signal outputted from the at least one of the multiplexed signal output ports is divided by the wavelength division demultiplexer integrated in the photonic integrated chip into optical signals each having a particular waveband.

Dependencies are inferred from the claim text.