Transceiver with multi-wavelength coexistence

A transceiver with multi-wavelength coexistence, wherein:

• M BOSAs (bi-direction optical sub-assemblies) and M fiber receptacles are disposed within a transceiver housing;
• a PCB (printed circuit board) is horizontally placed in the transceiver housing;
• each of the fiber receptacles is disposed on each of the BOSAs;
• the each of the BOSAs comprises N transmitters and N receivers all of which are optically coupled with the each of the fiber receptacles and electrically connected with the PCB;
• the M BOSAs, which are stacked vertically or horizontally, are respectively connected with an external fiber through the M fiber receptacles, wherein M≥2 and N≥2;
• the each of the BOSAs further comprises a WDM (wavelength division multiplexing) system and a single fiber bidirectional optical interface, wherein the N transmitters respectively transmit N emitted light beams with different wavelengths, the N receivers respectively receive N incident light beams with different wavelengths, the emitted light beams and the incident light beams respectively enter and exit from the fiber receptacles, and share the WDM system and the single fiber bidirectional optical interface in a transmission path;
• the N transmitters and the N receivers are arranged in a one-to-one interlaced manner, and the N emitted light beams with different wavelengths and the N incident light beams with different wavelengths are transmitted in the one-to-one interlaced manner.