公开(公告)号：US20140185139A1

公开(公告)日：2014-07-03

申请号：US13729803

申请日：2012-12-28

Applicant: FUTUREWEI TECHNOLOGIES, INC.

Inventor： Rongsheng Miao ,  Tongqing Wang ,  Changzheng Su ,  Xueyan Zheng ,  Yu Sheng Bai

IPC: G02B5/30

CPC classification number: G02B5/3083 ,  G02B27/283

Abstract: An optical apparatus, comprising a polarization beam splitter (PBS) comprising a birefringent crystal having a front-end and a back-end, and an optical rotator positioned on the back-end of the birefringent crystal. Included is an optical apparatus comprising a PBS comprising a birefringent crystal and an optical rotator, wherein the PBS is configured to receive a multiplexed optical signal comprising a first polarized optical signal and a second polarized optical signal, wherein the second polarized optical signal is orthogonal to the first polarized optical signal, separate the first polarized optical signal from the second polarized optical signal using the birefringent crystal, and rotate the second polarized optical signal using the optical rotator such that the rotated second polarized optical signal is parallel to the first polarized optical signal. The PBS may further comprise only one lens, wherein the lens is positioned on the front-end of the birefringent crystal.

Abstract translation: 一种光学装置，包括具有前端和后端的双折射晶体的偏振分束器（PBS）和位于双折射晶体的后端的旋光器。 包括包括包含双折射晶体和光旋转器的PBS的光学装置，其中PBS被配置为接收包括第一偏振光信号和第二偏振光信号的复用光信号，其中第二偏振光信号正交于 第一偏振光信号，使用双折射晶体将第一偏振光信号与第二偏振光信号分离，并且使用旋光器旋转第二偏振光信号，使得旋转的第二偏振光信号平行于第一偏振光信号 。 PBS还可以仅包括一个透镜，其中透镜位于双折射晶体的前端。

公开(公告)号：US09075200B2

公开(公告)日：2015-07-07

申请号：US13729803

申请日：2012-12-28

Applicant: Futurewei Technologies, Inc.

Inventor： Rongsheng Miao ,  Tongqing Wang ,  Changzheng Su ,  Xueyan Zheng ,  Yu Sheng Bai

IPC: G02B5/30 ,  G02B27/28

CPC classification number: G02B5/3083 ,  G02B27/283

Abstract: An optical apparatus, comprising a polarization beam splitter (PBS) comprising a birefringent crystal having a front-end and a back-end, and an optical rotator positioned on the back-end of the birefringent crystal. Included is an optical apparatus comprising a PBS comprising a birefringent crystal and an optical rotator, wherein the PBS is configured to receive a multiplexed optical signal comprising a first polarized optical signal and a second polarized optical signal, wherein the second polarized optical signal is orthogonal to the first polarized optical signal, separate the first polarized optical signal from the second polarized optical signal using the birefringent crystal, and rotate the second polarized optical signal using the optical rotator such that the rotated second polarized optical signal is parallel to the first polarized optical signal. The PBS may further comprise only one lens, wherein the lens is positioned on the front-end of the birefringent crystal.

Abstract translation: 一种光学装置，包括具有前端和后端的双折射晶体的偏振分束器（PBS）和位于双折射晶体的后端的旋光器。 包括包括包含双折射晶体和光旋转器的PBS的光学装置，其中PBS被配置为接收包括第一偏振光信号和第二偏振光信号的复用光信号，其中第二偏振光信号正交于 第一偏振光信号，使用双折射晶体将第一偏振光信号与第二偏振光信号分离，并且使用旋光器旋转第二偏振光信号，使得旋转的第二偏振光信号平行于第一偏振光信号 。 PBS还可以仅包括一个透镜，其中透镜位于双折射晶体的前端。