公开(公告)号：US20210208349A1

公开(公告)日：2021-07-08

申请号：US17301034

申请日：2021-03-23

Applicant: Lumentum Operations LLC

Inventor： Yiduo ZHANG ,  Gilberto MADRID ,  Titus WHITEHEAD ,  Martin H. MUENDEL

IPC: G02B6/42 ,  G02B6/38

Abstract: An optical fiber heat exchanger includes an outer body and an inner body inserted into the outer body. The inner body includes a plurality of guide walls to guide a cooling liquid through the optical fiber heat exchanger to exchange heat from an optical fiber inserted in the optical fiber heat exchanger, a first set of parallel straight channels, extending along an inlet portion of the inner body, formed by a first subset of the plurality of guide walls, a set of U-shaped channels, extending through a transition section of the inner body, formed by a second subset of the plurality of guide walls, and a second set of parallel straight channels, extending along an outlet portion of the inner body, formed by a third subset of the plurality of guide walls.

公开(公告)号：US20200326493A1

公开(公告)日：2020-10-15

申请号：US16688702

申请日：2019-11-19

Applicant: Lumentum Operations LLC

Inventor： Yiduo ZHANG ,  Gilberto MADRID ,  Titus WHITEHEAD ,  Martin H. MUENDEL

IPC: G02B6/42 ,  G02B6/38

Abstract: An optical fiber heat exchanger includes an outer body and an inner body inserted into the outer body. The inner body includes a plurality of guide walls to guide a cooling liquid through the optical fiber heat exchanger to exchange heat from an optical fiber inserted in the optical fiber heat exchanger, a first set of parallel straight channels, extending along an inlet portion of the inner body, formed by a first subset of the plurality of guide walls, a set of U-shaped channels, extending through a transition section of the inner body, formed by a second subset of the plurality of guide walls, and a second set of parallel straight channels, extending along an outlet portion of the inner body, formed by a third subset of the plurality of guide walls.

公开(公告)号：US20200284986A1

公开(公告)日：2020-09-10

申请号：US16588838

申请日：2019-09-30

Applicant: Lumentum Operations LLC

Inventor： Richard D. FAULHABER ,  Martin H. MUENDEL

IPC: G02B6/32 ,  B23K26/06 ,  H01S3/08 ,  B23K26/073 ,  G02B6/42

Abstract: An optical fiber device may include an optical waveguide to guide a laser output from a first end of the optical waveguide to a second end of the optical waveguide. The optical fiber device may include a fiber telescope optically coupled to the second end of the optical waveguide to modify the laser output. The fiber telescope may include a first graded-index optical element, a first facet of the first graded-index optical element being fused to the second end of the optical waveguide; and a second graded-index optical element, a first facet of the second graded-index optical element being fused to a second facet of the first graded-index optical element.

公开(公告)号：US20190317280A1

公开(公告)日：2019-10-17

申请号：US16457018

申请日：2019-06-28

Applicant: Lumentum Operations LLC

Inventor： Martin H. MUENDEL ,  James J. MOREHEAD ,  Vincent PETIT ,  Richard D. FAULHABER

IPC: G02B6/14 ,  G02B6/024 ,  G02B6/26

Abstract: An optical fiber device may include a unitary core including a primary section and a secondary section, wherein at least a portion of the secondary section is offset from a center of the unitary core, wherein the unitary core twists about an axis of the optical fiber device along a length of the optical fiber device, and wherein a refractive index of the primary section is greater than a refractive index of the secondary section; and a cladding surrounding the unitary core.

公开(公告)号：US20170279246A1

公开(公告)日：2017-09-28

申请号：US15510870

申请日：2015-10-08

Applicant: Lumentum Operations LLC ,  AMADA HOLDINGS COMPANY LTD.

Inventor： Martin H. MUENDEL ,  Justin L. FRANKE ,  Joseph J. ALONIS ,  Kaori USUDA ,  Minoru OGATA

IPC: H01S5/0683 ,  H01S5/042 ,  H01S5/40

CPC classification number: H01S5/0427 ,  B23K26/0608 ,  B23K26/0613 ,  B23K26/064 ,  B23K26/0876 ,  B23K26/362 ,  B23K26/38 ,  B23K26/702 ,  B23K26/703 ,  H01S3/131 ,  H01S5/005 ,  H01S5/0071 ,  H01S5/02252 ,  H01S5/02423 ,  H01S5/042 ,  H01S5/0617 ,  H01S5/0683 ,  H01S5/141 ,  H01S5/4012 ,  H01S5/4018 ,  H01S5/4025 ,  H01S5/4062 ,  H01S5/4087

Abstract: A power control method for a laser system comprising laser diodes arranged in diode banks is provided. Each diode bank comprises at least one of the laser diodes and has a maximum power. The method comprises operating a first diode bank of the diode banks to output a first power; and concurrently operating other of the diode banks to output other powers, at least one of the other powers being different than the first power.

公开(公告)号：US20250004288A1

公开(公告)日：2025-01-02

申请号：US18478620

申请日：2023-09-29

Applicant: Lumentum Operations LLC

Inventor： Martin H. MUENDEL ,  Richard D. FAULHABER

IPC: G02B27/09 ,  G02B6/34 ,  G02B26/08 ,  G02B27/30

Abstract: In some implementations, an optical device may include a first optical element, wherein the first optical element is a first prism. The optical device may include a second optical element, wherein the second optical element is a second prism, and wherein the optical device is configured to receive a beam and output the beam. The first optical element and the second optical element may be configured to alter a beam shape of the beam, such that the beam has a first shape at a first location and a second shape at a second location.

公开(公告)号：US20240368021A1

公开(公告)日：2024-11-07

申请号：US18353414

申请日：2023-07-17

Applicant: Lumentum Operations LLC

Inventor： Richard D. FAULHABER ,  Patrick GREGG ,  Martin H. MUENDEL

IPC: C03B37/14 ,  G02B6/028 ,  G02B6/28

Abstract: In some implementations, a fiber processing machine may receive an optical assembly comprising an input fiber, an output fiber, and a graded index fiber spliced between the input fiber and the output fiber, wherein the graded index fiber has a pitch length and a processed length. A light source may deliver input light into an input end of the input fiber while one or more components monitor output light at an output end of the output fiber. The fiber processing machine may alter a core diameter and the processed length of the graded index fiber until one or more measurements of the output light at the output end of the output fiber indicate that the output light is a perfect image of the input light.

公开(公告)号：US20230318250A1

公开(公告)日：2023-10-05

申请号：US17809417

申请日：2022-06-28

Applicant: Lumentum Operations LLC

Inventor： Richard D. FAULHABER ,  Martin H. MUENDEL ,  Patrick GREGG ,  Ning LIU

IPC: H01S3/094 ,  H01S3/067 ,  H01S3/10 ,  H01S3/0941

CPC classification number: H01S3/094007 ,  H01S3/0675 ,  H01S3/10023 ,  H01S3/09415 ,  H01S3/06733

Abstract: In some implementations, a master oscillator power amplifier (MOPA) system may include one or more pump laser sources, a power amplifier, and a multicore oscillator that includes an input side coupled to the one or more pump laser sources and an output side coupled to the power amplifier. In some implementations, the multicore oscillator may include an active fiber, including an inner cladding, an outer cladding surrounding the inner cladding, and multiple active fiber cores, embedded in the inner cladding, to convert pump light into signal light. In some implementations, the multicore oscillator may include multiple first reflectors that are each configured to operate as a high reflector on the input side of the oscillator, and multiple second reflectors that are each configured to operate as an output coupler on the output side of the oscillator.

公开(公告)号：US20230280526A1

公开(公告)日：2023-09-07

申请号：US18317644

申请日：2023-05-15

Applicant: Lumentum Operations LLC

Inventor： Patrick GREGG ,  Martin H. MUENDEL ,  Richard D. FAULHABER

IPC: G02B6/028 ,  G02B6/02

CPC classification number: G02B6/0288 ,  G02B6/02042 ,  G02B6/02052

Abstract: An optical device may include a fiber to provide a beam. The optical device may include a graded-index element to expand or magnify the beam. An input facet of the graded-index element may be adhered to an output facet of the fiber. The optical device may include an optical transformation element to transform the beam after the beam is expanded or magnified by the graded-index element. An input facet of the optical transformation element may be adhered to an output facet of the graded-index element. The optical transformation element may comprise at least one active optical element or may be non-birefringent such that orthogonal polarizations of the beam do not experience distinct phase transformations.

公开(公告)号：US20210296846A1

公开(公告)日：2021-09-23

申请号：US16865739

申请日：2020-05-04

Applicant: Lumentum Operations LLC

Inventor： James LEFORT ,  Richard D. FAULHABER ,  Martin H. MUENDEL ,  Andreas OEHLER

IPC: H01S3/108 ,  H01S3/08 ,  H01S3/067

Abstract: An optical element may include a plurality of subsurface induced scattering centers formed in the optical element, where the plurality of subsurface induced scattering centers scatter light passing through the optical element. In some implementations, the plurality of subsurface induced scattering centers may form a scattering region in the optical element. Additionally, or alternatively, the plurality of subsurface induced scattering centers may spatially vary transmission of light through the optical element. The optical element may be an optical waveguide, a bulk optic, and/or the like.