Wavelength division multiplexing/de-multiplexing optical transceiving assembly based on diffraction grating

A wavelength division multiplexing/de-multiplexing optical transceiver assembly based on a diffraction grating (6), comprising an uplink optical transmitting unit and a downlink optical receiving unit constituted by a laser chip array (1), an optical receiving detector array (2), a first fast-axis collimating lens (3), a second fast-axis collimating lens (4), a first slow-axis collimating lens (5), a diffraction grating (6), a slow-axis focusing lens (7), a second slow-axis collimating lens (8), an optical isolator (9), a coupling output lens (10), a coupling input lens (11), a coupling output fiber (12), and a coupling input fiber (13). The technical problem of sharing a diffraction grating (6) to implement a wavelength division multiplexing/de-multiplexing function is solved, and good effects such as good filtering characteristics of the diffraction grating (6), small optical coupling loss and wavelength-related insertion loss, large size of independent optical elements, relatively simple assembly process, and being more suitable for manufacturing a multichannel wavelength division multiplexing/de-multiplexing optical transceiver assembly are achieved.