公开(公告)号：US20170269311A1

公开(公告)日：2017-09-21

申请号：US15073342

申请日：2016-03-17

Applicant: Applied Optoelectronics, Inc.

Inventor： Chong WANG ,  Che-shou YEH ,  Jianhong LUO ,  Haohui MAO ,  I-Lung HO

IPC: G02B6/42 ,  G02B6/32 ,  H04J14/02 ,  H04B10/079 ,  H04B10/40 ,  H04B10/50

CPC classification number: G02B6/4208 ,  G02B6/32 ,  G02B6/4204 ,  G02B6/4246 ,  G02B6/4263 ,  G02B6/4286 ,  H04B10/0795 ,  H04B10/40 ,  H04B10/503 ,  H04J14/02

Abstract: A coaxial transmitter optical subassembly (TOSA) with optical isolator alignment correction may be used in an optical transceiver for transmitting an optical signal at a channel wavelength. The coaxial TOSA includes an optical fiber coupling receptacle extending from a laser package. The laser package may include a laser diode and a lens to focus laser light emitted from the laser diode onto an optical fiber. The laser diode and lens are aligned along a first longitudinal axis of the laser package parallel to a transmission path of the laser light. An optical isolator located in the transmission path is aligned along a second longitudinal axis of the laser package. The second longitudinal axis is coincident with a centerline of the laser package, and the first longitudinal axis is offset from the second longitudinal axis by a predetermined offset distance to compensate for light shifting characteristics of the isolator.