Optical transceiver module

An optical transceiver module, comprising a housing, and a circuit board, a bidirectional optical interface, a circulator assembly, an optical transmission assembly, a wavelength division multiplexing assembly, an optical reception assembly and a wavelength division demultiplexing assembly that are disposed in the housing,

• the optical transmission assembly and the optical reception assembly being electrically connected to the circuit board;
• wherein:
• the bidirectional optical interface is configured to output a combined optical signal and receiving a combined optical signal input from outside;
• the circulator assembly comprises a common optical port, an optical output port, and at least one optical incident port, wherein the common optical port is optically coupled to the bidirectional optical interface, the optical output port is optically coupled to the wavelength division demultiplexing assembly, and each of the optical incident ports is optically coupled to the wavelength division multiplexing assembly;
• the optical transmission assembly is configured to transmit at least eight transmission-end optical signals;
• the wavelength division multiplexing assembly is configured to combine the at least eight transmission-end optical signals from the optical transmission assembly and transmit them to the optical incident port;
• the wavelength division demultiplexing assembly is configured to demultiplex the combined optical signal output from the optical output port into at least eight reception-end optical signals;
• and
• the optical reception assembly is configured to receive the at least eight reception-end optical signals from the wavelength division demultiplexing assembly.