公开(公告)号：US10923875B2

公开(公告)日：2021-02-16

申请号：US15889736

申请日：2018-02-06

Applicant: Lumentum Operations LLC

Inventor： Jiamin Zheng ,  Barrie P. Keyworth ,  Paul Colbourne ,  Dhanorm Plumwongrot ,  Gareth Jones ,  Sheldon McLaughlin

IPC: G02B26/08 ,  G02B26/10 ,  G02B26/12 ,  H01S3/067 ,  H01S3/00 ,  H01S3/23 ,  H01S3/081 ,  H01S3/10 ,  G02B27/09 ,  H01S3/13 ,  H01S3/02 ,  H01S3/16 ,  H01S3/094 ,  H01S3/063 ,  H01S3/0941

Abstract: An optical device may include a package having a first port for receiving signal light, a source for providing pump light, a combiner for combining the signal light and the pump light into combined light, a second port for sending the combined light, a third port for receiving amplified light, and a free-space optical system for filtering amplified signal light from the amplified light, and a fourth port for sending the amplified signal light. The free-space optical system may include beam shaping optics that enlarge a beam size of the amplified light prior to the filtering.