公开(公告)号：US20240295709A1

公开(公告)日：2024-09-05

申请号：US18193673

申请日：2023-03-31

Applicant: Fuzhou Photop Optics Co., Ltd.

Inventor： Li Wu ,  Bin Zheng ,  Zhongwei Yu ,  Zhong Cheng ,  Lei Lin

IPC: G02B6/44

CPC classification number: G02B6/4429

Abstract: An optical fiber capillary tube power stripper includes a capillary tube having an elongated body including an outer surface and an inner surface that surrounds an elongated optical fiber. The capillary tube (a) defines one or more spaces or gaps in the elongated body between first and second ends of the capillary tube; or (b) includes one or more lateral openings in the elongated body between first and second ends of the capillary tube; or (c) includes the outer surface defining one or more ridges and one or more valleys or grooves that surround the outer surface of the body between first and second ends of the capillary tube.

公开(公告)号：US20240295700A1

公开(公告)日：2024-09-05

申请号：US18193677

申请日：2023-03-31

Applicant: Fuzhou Photop Optics Co., Ltd

Inventor： Li Wu ,  Bin Zheng ,  Zhongwei Yu ,  Zhong Cheng ,  Lei Lin

IPC: G02B6/293 ,  G02B6/02

CPC classification number: G02B6/29334 ,  G02B6/02209 ,  H01S3/06708 ,  H01S3/0675

Abstract: An optical fiber cladding optical filter includes an elongated capillary tube including an inner surface positioned surrounding an elongated optical fiber proximate or adjacent an exterior surface of the optical fiber and an outer surface positioned spaced from the exterior surface of the optical fiber. A grating formed on the outer surface of the elongated capillary tube aids in suppressing evanescent laser light that exits the optical fiber transverse to a longitudinal axis of the optical fiber. The elongated optical fiber and surrounding elongated capillary tube can include one or more curves along a length thereof to aid in the removal of one or more higher order laser modes as evanescent laser light that exits the optical fiber. The one or more curves can be received in a container to prevent or avoid evanescent laser exiting the optical fiber from propagating into an ambient environment.