公开(公告)号：WO2019089987A1

公开(公告)日：2019-05-09

申请号：PCT/US2018/058788

申请日：2018-11-01

Applicant: O-NET COMMUNICATIONS (USA) INC.

Inventor： LUO, Xiaobing ,  HUANG, Zining ,  ZHOU, Zhigang ,  KERR, Terrence ,  YU, Qinrong

IPC: H04B10/40 ,  H04B10/50 ,  H04B10/66

CPC classification number: H04B10/506 ,  H04B10/40

Abstract: An optical transmitter includes a transmitter support bench engaged to a printed circuit board, different semiconductor laser assemblies engaged to the transmitter support bench to emit laser beams at different laser wavelengths to carry communication signals at the different laser wavelengths, a wavelength multiplexing device engaged to the transmitter support bench and located to receive the laser beams from the semiconductor laser assemblies and to combine the different laser beams into a combined output laser beam as an output of an optical transceiver, and an optical isolator located relative to the wavelength multiplexing device to receive the combined output laser beam while preventing light propagating in a direction opposite to the combined output laser beam, thus reducing undesired optical feedback to the wavelength multiplexing device and the semiconductor laser assemblies.