公开(公告)号：US11489311B2

公开(公告)日：2022-11-01

申请号：US16692984

申请日：2019-11-22

Applicant: Lumentum Operations LLC

Inventor： Guansan Chen ,  Sheldon McLaughlin

IPC: H01S3/067 ,  H01S3/16 ,  H01S3/094

Abstract: An optical amplifier may include an optical fiber to propagate a forward optical signal in a path of propagation of the optical amplifier. The optical fiber may have an input end face that is angled non-perpendicular to the path of propagation. The optical amplifier may include an optical component, in optical communication with the input end face of the optical fiber, to direct a backward optical emission away from the path of propagation.