公开(公告)号：US20220334327A1

公开(公告)日：2022-10-20

申请号：US17304999

申请日：2021-06-29

Applicant: Lumentum Operations LLC

Inventor： Martin H. MUENDEL ,  Patrick GREGG ,  Richard D. FAULHABER ,  Jeff GREGG ,  James J. MOREHEAD

IPC: G02B6/42 ,  G02B6/04

Abstract: In some implementations, a fiber optic combiner may comprise an enclosing tube having a geometric shape and multiple optical fibers bundled within the enclosing tube. In some implementations, the multiple fibers comprise at least one optical fiber having a core and a non-circular cladding surrounding the core. The non-circular cladding may cause the multiple optical fibers to have a larger tube fill factor and a lower expected beam parameter product increase factor relative to the multiple optical fibers all having circular claddings.

公开(公告)号：US20210373261A1

公开(公告)日：2021-12-02

申请号：US16947465

申请日：2020-08-03

Applicant: Lumentum Operations LLC

Inventor： Martin H. MUENDEL ,  Patrick GREGG ,  Richard D. FAULHABER ,  James J. MOREHEAD ,  Alex HATCHER

IPC: G02B6/42 ,  G02B6/028

Abstract: A graded index fiber having a refractive index profile that causes a beam to be re-imaged in the graded index fiber with a regular period may include a set of bends that have a bend period matched to or nearly matched to a pitch of the graded index fiber. For example, the set of bends may be formed in the graded index fiber using one or more bending devices that include one or more protrusions that have a periodicity matched to or nearly matched to a pitch of the graded index fiber. A first section of the one or more bending devices may be actuated to move towards a second section of the one or more bending devices such that the one or more protrusions cause the bends to be formed in the graded index fiber.

公开(公告)号：US20210223467A1

公开(公告)日：2021-07-22

申请号：US16853469

申请日：2020-04-20

Applicant: Lumentum Operations LLC

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

IPC: G02B6/028 ,  G02B6/26 ,  G02B6/32

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.

公开(公告)号：US20250020861A1

公开(公告)日：2025-01-16

申请号：US18499062

申请日：2023-10-31

Applicant: Lumentum Operations LLC

Inventor： Richard D. FAULHABER ,  Patrick GREGG ,  Jeff GREGG

IPC: G02B6/04 ,  G02B6/02 ,  H01S3/094

Abstract: An optical pump-signal combiner includes a first end and a second end. The optical pump-signal combiner is tapered down from the first end to the second end. At a first cross-section of the optical pump-signal combiner associated with the first end, the optical pump-signal combiner includes a capillary, a plurality of signal fibers that are disposed within the capillary, and a plurality of pump fibers that surround the capillary. Each signal fiber, of the plurality of signal fibers, includes a signal core and a signal cladding, and each pump fiber, of the plurality of pump fibers, includes a pump core and a pump cladding. At a second cross-section of the optical pump-signal combiner associated with the second end, the optical pump-signal combiner includes a unified fiber that includes an outer combined-cladding, a combined-pump core, an inner combined-cladding, and a combined-signal core.

公开(公告)号：US20240275116A1

公开(公告)日：2024-08-15

申请号：US18194242

申请日：2023-03-31

Applicant: Lumentum Operations LLC

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

IPC: H01S3/067 ,  H01S3/094

CPC classification number: H01S3/06737 ,  H01S3/06783 ,  H01S3/094007

Abstract: In some implementations, an optical system includes a multicore input fiber comprising multiple cores that are each configured to support an independent singlemode laser; a delivery fiber comprising a single core configured to support multiple modes; and a signal combiner, coupled to the multicore input fiber and coupled to the delivery fiber. In some implementations, the signal combiner is configured to receive multiple independent singlemode laser inputs from the multicore input fiber and to combine the multiple independent singlemode laser inputs into a multimode output that is provided to the delivery fiber.

公开(公告)号：US20230333315A1

公开(公告)日：2023-10-19

申请号：US17810087

申请日：2022-06-30

Applicant: Lumentum Operations LLC

Inventor： Patrick GREGG ,  Richard D. FAULHABER ,  Martin H. MUENDEL ,  Jeff GREGG ,  Kyle R. SCHNEIDER

IPC: G02B6/04 ,  H01S3/094 ,  G02B6/02

CPC classification number: G02B6/04 ,  H01S3/094053 ,  G02B6/02

Abstract: A laser component includes a pump-signal combiner, which includes a first capillary, a plurality of pump fibers, a second capillary, and a signal fiber. The plurality of pump fibers, the second capillary, and the signal fiber are arranged in a bundle configuration. The bundle configuration is disposed within an internal portion of the first capillary. A cross-section of the bundle configuration includes an outer area, in which the plurality of pump fibers are disposed, and an inner area, in which the second capillary and the signal fiber are disposed. The signal fiber is disposed within an internal portion of the second capillary.

公开(公告)号：US20230094713A1

公开(公告)日：2023-03-30

申请号：US17644610

申请日：2021-12-16

Applicant: Lumentum Operations LLC

Inventor： Patrick GREGG ,  Martin H. MUENDEL ,  Richard D. FAULHABER ,  Alex HATCHER ,  John PECK

IPC: B23K26/06 ,  G02B6/42 ,  G02B6/02 ,  G02B6/028

Abstract: An optical assembly may comprise an input fiber to provide a beam, a process fiber comprising a ring-shaped outer core surrounded by a cladding, and a first beam shifter arranged to receive the beam from the input fiber and to shift the beam spatially to illuminate the ring-shaped outer core of the process fiber. The optical assembly may further comprise a second beam shifter arranged to receive the beam from the first beam shifter and to add skew to the beam that is launched into the ring-shaped outer core of the process fiber.

公开(公告)号：US20230008662A1

公开(公告)日：2023-01-12

申请号：US17447373

申请日：2021-09-10

Applicant: Lumentum Operations LLC

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

IPC: G02B6/255 ,  G02B6/245 ,  G02B6/02

Abstract: In some implementations, an optical fiber may include a core and a cladding surrounding the core. The core and the cladding may provide light guidance along the optical fiber in a light propagation direction. The core may have a taper in the light propagation direction in a section of the optical fiber. A diameter of the core may decrease independently of a diameter of the cladding in the section of the optical fiber.