公开(公告)号：US20210149129A1

公开(公告)日：2021-05-20

申请号：US17158738

申请日：2021-01-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhang Wei ,  Peng Liu ,  Aimin XU ,  Xiguang Li ,  Jingran Kang ,  Wei Ling

IPC: G02B6/42 ,  H04B10/61

Abstract: A receiver optical subassembly includes an optical receiving housing, and a first optical receiver, a second optical receiver, and a first glass are packaged in the optical receiving housing. The first glass is disposed obliquely relative to an optical receiving direction, and includes a light incident surface and a light emergent surface. The first optical receiver and the second optical receiver are opposite to the light emergent surface of the first glass. A first light splitting film is disposed on the light emergent surface of the first glass. A first reflective film is disposed on the light emergent surface of the first glass. The first light splitting film can transmit an optical signal of a first wavelength and reflect an optical signal of a second wavelength.