BIDIRECTIONAL OPTICAL TRANSMITTING AND RECEIVING MODULE

摘要

A bidirectional optical transmitting and receiving module is disclosed. The bidirectional optical transmitting and receiving module, according to the present invention, comprises: an optical transmitting unit for outputting a transmission signal and an optical receiving unit for receiving a receiving signal, wherein the transmission signal and the reception signal have different wavelength values within a single channel; a splitter which is provided at an incline with respect to an incident direction of the transmission signal outputted from the optical transmitting unit such that the transmission signal passes through the splitter and is outputted to the outside, and which reflects optical signals inputted from the outside; and a reflected light-blocking optical filter which only passes, as a receiving signal, an optical signal within a preset wavelength range including the wavelength value allocated to the receiving signal among the optical signals reflected by the splitter, and which blocks external reflected light. The present invention can provide the bidirectional optical transmitting and receiving module capable of preventing a link fail between optical communication networks caused by reflection and back-scattering on an optical line.