公开(公告)号：US10833775B1

公开(公告)日：2020-11-10

申请号：US16387816

申请日：2019-04-18

Applicant: Applied Optoelectronics, Inc.

Inventor： Chong Wang ,  Kai-Sheng Lin ,  Yongxuan Liang ,  I-Lung Ho

IPC: H04B10/00 ,  H04B10/80 ,  G02B6/42 ,  H04J14/02 ,  H04B10/50 ,  H05K9/00

Abstract: In general, the present disclosure is directed to a transmitter optical subassembly (TOSA) module for use in an optical transceiver or transmitter that includes a magnetically-shielded optical isolator to minimize or otherwise reduce magnetization of TOSA components. An embodiment of the present disclosure includes a TOSA housing with magnetic shielding at least partially surrounding an optical isolator, with the magnetic shielding reflecting associated magnetic energy away from components, such as a metal TOSA housing or components disposed therein, that could become magnetized and adversely impact the magnetic flux density of the magnetic field associated with the optical isolator.