公开(公告)号：US20250067935A1

公开(公告)日：2025-02-27

申请号：US18635493

申请日：2024-04-15

Applicant: Lumentum Operations LLC

Inventor： Richard D. FAULHABER ,  Michael LOVELADY ,  Titus WHITEHEAD ,  Peter BULLEN ,  Kaitlyn COMSTOCK ,  Ramunas WIERZBICKI

IPC: G02B6/26

Abstract: In some implementations, an optical component includes an optical fiber having a core for guiding signal light and a cladding surrounding the core. A cladding light stripper may be defined for the optical fiber, where the cladding light stripper has a length along the cladding. The optical component may include a package, retaining the cladding light stripper, having a surface that faces the cladding light stripper. A light reflectivity of the surface may vary, by surface location, to control a degree of light absorption along the package.

公开(公告)号：US20230034097A1

公开(公告)日：2023-02-02

申请号：US17453441

申请日：2021-11-03

Applicant: Lumentum Operations LLC

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

IPC: G02F1/365

Abstract: In some implementations, a monolithic optical fiber may comprise a tapered core having a first diameter at an input end and a second diameter at an output end. The tapered core may comprise a first tapered region at the input end, a second tapered region at the output end, and a central region having a constant diameter that is larger than the first diameter and the second diameter. The first tapered region expands monotonically from the first diameter to the constant diameter of the central region along a length of the first tapered region, and the second tapered region contracts monotonically from the constant diameter of the central region to the second diameter along a length of the second tapered region. The monolithic optical fiber may be used as a delivery fiber to deliver a laser beam from a fiber laser engine to a process head.

公开(公告)号：US20240280732A1

公开(公告)日：2024-08-22

申请号：US18194309

申请日：2023-03-31

Applicant: Lumentum Operations LLC

Inventor： Richard D. FAULHABER ,  Martin H. MUENDEL

IPC: G02B1/18 ,  G02B6/02

CPC classification number: G02B1/18 ,  G02B6/02052 ,  G02B6/02095 ,  G02B2006/12121

Abstract: In some implementations, an optical component includes an optical medium, the optical medium having a surface, wherein the surface includes one or more hydroxyl group terminations; and a surface layer chemically bonded to the optical medium, such that the surface layer has a thickness of less than 10 nanometers and is a hydrophobic surface, the surface layer including at least one of: a hexamethyldisilazane material, a polysiloxane material, a polydimethylsiloxane material, a fluoro-polymer material, an organosilicon material, or an organofluorine material.

公开(公告)号：US20230116665A1

公开(公告)日：2023-04-13

申请号：US17645336

申请日：2021-12-21

Applicant: Lumentum Operations LLC

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

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

Abstract: An in-fiber beam scanning system may comprise an input fiber to provide a beam, a feeding fiber comprising an imaging bundle with multiple cores embedded in a first cladding that is surrounded by a second cladding, and an in-fiber beam shifter that comprises a first multibend beam shifter coupled to the input fiber, a graded index fiber following the first multibend beam shifter, and a second multibend beam shifter following the graded index fiber and coupling into the feeding fiber. In some implementations, the first multibend beam shifter is actuated by a first amount and the second multibend beam shifter is actuated by a second amount to shift the beam in two dimensions and deliver the beam into one or more target cores in the imaging bundle.

公开(公告)号：US20220209486A1

公开(公告)日：2022-06-30

申请号：US17190207

申请日：2021-03-02

Applicant: Lumentum Operations LLC

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

IPC: H01S3/067 ,  G02B6/036 ,  G02B6/02

Abstract: In some implementations, a waveguide may comprise an inner core to receive a first beam and an outer core surrounding the inner core to receive a second beam that is displaced from the first beam by an offset. The outer core may comprise a beam guiding region that rotationally expands over a length of the waveguide into an annulus that concentrically surrounds the inner core or a partial annulus that partially surrounds the inner core. For example, the beam guiding region may be defined by one or more low refractive index features that have a varied orientation and/or a varied shape over the length of the waveguide such that the second beam enters the waveguide as an offset beam and exits from the waveguide as a ring-shaped beam or a partial ring-shaped beam.

公开(公告)号：US20210255469A1

公开(公告)日：2021-08-19

申请号：US16860476

申请日：2020-04-28

Applicant: Lumentum Operations LLC

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

IPC: G02B27/09 ,  G02B6/02

Abstract: An optical fiber may include a first core, a second core, and a cladding surrounding the first core and the second core. The second core may be at an off-center location with respect to a center of the optical fiber, or the second core may include an azimuthally nonuniform section at the off-center location. The second core may twist about an axis of the optical fiber along a length of the optical fiber, and the second core being twisted about the axis may cause an optical beam, launched into the second core at a first end of the optical fiber, to be at least partially converted to a rotary optical beam at a second end of the optical fiber.

公开(公告)号：US20200081187A1

公开(公告)日：2020-03-12

申请号：US16573814

申请日：2019-09-17

Applicant: Lumentum Operations LLC

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

IPC: G02B6/255 ,  G02B6/25

Abstract: A device may splice, at a target splice point, a first end of a twisted fiber having a non-concentric core to an input end of a target fiber having a concentric core to form a spliced fiber wherein the concentric core of the target fiber and the non-concentric core of the twisted fiber have a particular offset at the target splice point. The device may taper at least a portion of the twisted fiber to form a tapered region of the spliced fiber and such that the particular offset at the target splice point corresponds to a pre-configured core offset wherein the target splice point is within the tapered region of the spliced fiber.

公开(公告)号：US20250155641A1

公开(公告)日：2025-05-15

申请号：US19027002

申请日：2025-01-17

Applicant: Lumentum Operations LLC

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

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

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.

公开(公告)号：US20250007233A1

公开(公告)日：2025-01-02

申请号：US18474664

申请日：2023-09-26

Applicant: Lumentum Operations LLC

Inventor： Richard D. FAULHABER ,  Martin H. MUENDEL ,  Gongwen ZHU

IPC: H01S3/094 ,  G02B6/02 ,  G02B6/04 ,  H01S3/0941

Abstract: In some implementations, an optical system may comprise a plurality of pump sources, an output fiber, and a combiner that comprises an input end coupled to the plurality of pump sources and an output end coupled to the output fiber. In some implementations, the combiner comprises a plurality of pump fibers coupled to the plurality of pump sources, and one or more filler fibers that are made from a cladding material. In some implementations, a quantity of the plurality of pump fibers is associated with an asymmetric packing geometry, and the plurality of pump fibers and the one or more filler fibers have a symmetric packing geometry at the input end of the combiner and a circular cross-section at the output end of the combiner. In some implementations, the plurality of pump fibers and the one or more filler fibers each have a substantially circular cross-section.

公开(公告)号：US20220342154A1

公开(公告)日：2022-10-27

申请号：US17362300

申请日：2021-06-29

Applicant: Lumentum Operations LLC

Inventor： Martin H. MUENDEL ,  Richard D. FAULHABER

IPC: G02B6/32 ,  G02B6/42 ,  H01S3/08

Abstract: A laser beam delivery system includes an optical beam launcher device and a waveguide assembly. The optical beam launcher device includes an optical relay system that includes a beam splitting optic that is configured to cause a laser beam that is input into the optical beam launcher device to be split into a first laser sub-beam and a second laser sub-beam, cause the first laser sub-beam to transmit to a first region of an input lens of the waveguide assembly, and cause the second laser sub-beam to transmit to a second region of the input lens. The waveguide assembly is configured to transmit the first laser sub-beam and the second laser sub-beam from the input lens to an output lens of the waveguide assembly, wherein the first laser sub-beam and the second laser sub-beam transmit from the waveguide assembly and form an output laser beam.