公开(公告)号：US20240159948A1

公开(公告)日：2024-05-16

申请号：US18068314

申请日：2022-12-19

Applicant: Lumentum Operations LLC

Inventor： Cailin WEI ,  Jihua DU ,  Prasad YALAMANCHILI

IPC: G02B5/20 ,  G02B17/08 ,  G02B27/30

CPC classification number: G02B5/208 ,  G02B17/086 ,  G02B27/30

Abstract: In some implementations, an optical system includes an optical emitter, a locking apparatus, wherein the locking apparatus comprises a narrow bandwidth transmission filter (NBTF) and a partial reflection surface, wherein the locking apparatus is aligned to an optical output of the optical emitter, and wherein the locking apparatus is configured to provide optical feedback to the optical emitter.

公开(公告)号：US20230178966A1

公开(公告)日：2023-06-08

申请号：US18062915

申请日：2022-12-07

Applicant: Lumentum Operations LLC

Inventor： Cailin WEI ,  John G. BAI ,  Jihua DU ,  Prasad YALAMANCHILI ,  Victor ROSSIN

IPC: H01S5/40 ,  G02B27/28 ,  G02B27/09 ,  H01S5/02251 ,  H01S5/02325 ,  H01S5/02315

CPC classification number: H01S5/4012 ,  H01S5/4025 ,  G02B27/285 ,  G02B27/0905 ,  G02B27/0922 ,  G02B27/0944 ,  G02B27/0955 ,  G02B27/0977 ,  H01S5/02251 ,  H01S5/02325 ,  H01S5/02315 ,  G02B27/286

Abstract: A laser module includes a laser submodule, a polarization beam combiner (PBC), a beam rotator, a grating, and an output fiber (e.g., each disposed on an internal surface of a floor of the laser module). The laser submodule is configured to emit an array pattern of beams, which the PBC is configured to combine into a vertical stack pattern of beams, which the beam rotator is configured to rotate into a horizontal stack pattern of beams, which the grating is configured to combine into an overlapped pattern of beams, which the output fiber is configured to emit. The vertical stack pattern of beams, the horizontal stack pattern of beams, and the overlapped pattern of beams are to transmit through the laser module parallel to a single common plane (e.g., that is parallel to the internal surface of the floor of the laser module).

公开(公告)号：US20220196932A1

公开(公告)日：2022-06-23

申请号：US17249099

申请日：2021-02-19

Applicant: Lumentum Operations LLC

Inventor： Cailin WEI ,  Jihua DU ,  Prasad YALAMANCHILI

IPC: G02B6/42 ,  G02B6/02

Abstract: In some implementations, an emitter module may include an emitter array that includes multiple emitters, and an optical fiber that includes multiple cores within a single cladding. The emitter array may be optically coupled to a tip of the optical fiber such that each emitter, of the multiple emitters of the emitter array, is optically coupled to a respective core of the multiple cores of the optical fiber. The optical fiber may include an integral lens at the tip of the optical fiber. The integral lens at the tip of the optical fiber may be in alignment with the multiple cores of the optical fiber.

公开(公告)号：US20250164722A1

公开(公告)日：2025-05-22

申请号：US18622701

申请日：2024-03-29

Applicant: Lumentum Operations LLC

Inventor： Yusheng CHEN ,  Jack XU ,  Nicolas MALONZO ,  Jihua DU ,  Prasad YALAMANCHILI ,  Jaspreet SINGH

IPC: G02B6/42 ,  G02B6/38

Abstract: A snout assembly of a laser pump module may include a snout bulkhead comprising an opening along a longitudinal axis of the snout bulkhead. The snout assembly may include a ferrule in the opening of the snout bulkhead. The snout assembly may include a metallization layer on a portion of an outer surface of the ferrule. The snout assembly may include a copper-silver (CuAg) solder material between the metallization layer and a surface of the opening. The CuAg solder material may bond the ferrule and the snout bulkhead.

公开(公告)号：US20250116814A1

公开(公告)日：2025-04-10

申请号：US18525564

申请日：2023-11-30

Applicant: Lumentum Operations LLC

Inventor： Cailin WEI ,  Jihua DU ,  Prasad YALAMANCHILI ,  Liang ZHAO ,  Hao XU

IPC: G02B6/26 ,  G02B6/38 ,  G02B6/42

Abstract: A laser redundancy device includes a plurality of lasers and a PLC that includes a plurality of input waveguides, a plurality of first couplers, a plurality of intermediate waveguides, a plurality of second couplers, and a plurality of output waveguides. Each first coupler includes a plurality of first input arms and a plurality of first output arms. Each second coupler includes a plurality of second input arms and a plurality of second output arms. Each first coupler is connected to: two or more input waveguides via the plurality of first input arms, and the plurality of second couplers via the plurality of first output arms, two or more intermediate waveguides, and respective second input arms of the plurality of second couplers. Each second coupler is connected to two or more output waveguides via the plurality of second output arms.

公开(公告)号：US20210063657A1

公开(公告)日：2021-03-04

申请号：US16700121

申请日：2019-12-02

Applicant: Lumentum Operations LLC

Inventor： Frank WU ,  Prasad YALAMANCHILI ,  Raman SRINIVASAN ,  Huijie XU

IPC: G02B6/42 ,  C09J163/00 ,  C09J5/00

Abstract: A fiber attachment structure may comprise a monolithic platform structure having a first trench and a second trench to segment the monolithic platform structure into a chip mount area, a first island, and a second island. A laser chip may be mounted directly on the chip mount area and an optical fiber may be mounted on the first island by a first adhesive joint and on the second island by a second adhesive joint. For example, in some implementations, the first adhesive joint may include a first quantity of adhesive material attaching the optical fiber to the first island at a position at which a tip of the optical fiber is aligned with an output facet of the laser chip, and the second adhesive joint may include a second quantity of the adhesive material to mechanically secure the optical fiber to the second island.