公开(公告)号：US20240356296A1

公开(公告)日：2024-10-24

申请号：US18756512

申请日：2024-06-27

Applicant: Lumentum Operations LLC

Inventor： Jian CHEN ,  Chang XIAO ,  Xia HONG ,  Fangdong ZHAO

IPC: H01S3/063 ,  G02B6/12 ,  G02B6/42 ,  H01S3/102

CPC classification number: H01S3/063 ,  G02B6/12019 ,  G02B6/4204 ,  H01S3/1022

Abstract: In some implementations, an optical isolator core includes a Faraday rotator and a plurality of birefringent crystal plates. The plurality of birefringent crystal plates may include a first birefringent crystal plate to separate input light into light having a first polarization and light having a second polarization, and a second birefringent crystal plate to combine the light having the first polarization and the light having the second polarization in output light that is laterally displaced by the single stage optical isolator. The Faraday rotator may be provided between the first birefringent crystal plate and the second birefringent crystal plate. In some implementations, the plurality of birefringent crystal plates further include a third birefringent crystal plate provided between the Faraday rotator and the second birefringent crystal plate. Additionally, or alternatively, the optical isolator core may further include a half-wave plate arranged between the Faraday rotator and the first birefringent crystal plate.

公开(公告)号：US20240186764A1

公开(公告)日：2024-06-06

申请号：US17757819

申请日：2021-12-22

Applicant: Lumentum Operations LLC

Inventor： Jian CHEN ,  Andy QIU ,  Sukhbir BAJWA ,  Jarin PETWONG

IPC: H01S5/02315 ,  B23K1/00 ,  B23K101/40 ,  H01S5/02216 ,  H01S5/02251 ,  H01S5/02325

CPC classification number: H01S5/02315 ,  B23K1/0016 ,  H01S5/02216 ,  H01S5/02251 ,  H01S5/02325 ,  B23K2101/40

Abstract: In some implementations, an optical device may include a base with a first coefficient of thermal expansion (CTE). The optical device may include an opto-mechanical component with a second CTE attached to a surface of the base via a solder layer. The first CTE and the second CTE may differ by greater than a threshold amount. A spacer may be disposed within the solder layer to attach the opto-mechanical component to the base.

公开(公告)号：US20210351555A1

公开(公告)日：2021-11-11

申请号：US17164191

申请日：2021-02-01

Applicant: Lumentum Operations LLC

Inventor： Jian CHEN ,  Chang XIAO ,  Xia HONG ,  Fangdong ZHAO

IPC: H01S3/063 ,  G02B6/42 ,  H01S3/102 ,  G02B6/12

Abstract: In some implementations, an optical isolator core includes a Faraday rotator and a plurality of birefringent crystal plates. The plurality of birefringent crystal plates may include a first birefringent crystal plate to separate input light into light having a first polarization and light having a second polarization, and a second birefringent crystal plate to combine the light having the first polarization and the light having the second polarization in output light that is laterally displaced by the single stage optical isolator. The Faraday rotator may be provided between the first birefringent crystal plate and the second birefringent crystal plate. In some implementations, the plurality of birefringent crystal plates further include a third birefringent crystal plate provided between the Faraday rotator and the second birefringent crystal plate. Additionally, or alternatively, the optical isolator core may further include a half-wave plate arranged between the Faraday rotator and the first birefringent crystal plate.