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公开(公告)号：US20240230984A9
公开(公告)日：2024-07-11
申请号：US18191683
申请日：2023-03-28
Applicant: Lumentum Operations LLC
Inventor： Peter HOFMANN , Peter JAKOPIC , Martin H. MUENDEL
IPC: G02B6/02 , C03B37/012 , C03B37/018 , C03B37/027
CPC classification number: G02B6/02338 , C03B37/01217 , C03B37/01815 , C03B37/02718 , C03B37/02736 , G02B6/02395
Abstract: In some implementations, a substrate tube in a modified chemical vapor deposition process may rotate while glass precursors flow into the substrate tube at a fixed rate. Dopants may be delivered into the substrate tube while heat is applied to the substrate tube to deposit, on an inner wall of the substrate tube, a layer of material including the glass precursors and the dopants. A lateral position of an exit of an injection tube used to deliver the dopants may be adjusted while the substrate tube is rotated and heat is applied to the substrate tube such that the material deposited on the inner wall of the substrate tube has an azimuthally non-uniform doping concentration. Alternatively, a rotation of the substrate tube may be adjusted to create opposing temperature gradients within the substrate tube, causing non-uniform layer deposition to occur on different sides of the substrate tube in alternating passes.
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公开(公告)号：US20240134113A1
公开(公告)日：2024-04-25
申请号：US18191683
申请日：2023-03-27
Applicant: Lumentum Operations LLC
Inventor： Peter HOFMANN , Peter JAKOPIC , Martin H. MUENDEL
IPC: G02B6/02 , C03B37/012 , C03B37/018 , C03B37/027
CPC classification number: G02B6/02338 , C03B37/01217 , C03B37/01815 , C03B37/02718 , C03B37/02736 , G02B6/02395
Abstract: In some implementations, a substrate tube in a modified chemical vapor deposition process may rotate while glass precursors flow into the substrate tube at a fixed rate. Dopants may be delivered into the substrate tube while heat is applied to the substrate tube to deposit, on an inner wall of the substrate tube, a layer of material including the glass precursors and the dopants. A lateral position of an exit of an injection tube used to deliver the dopants may be adjusted while the substrate tube is rotated and heat is applied to the substrate tube such that the material deposited on the inner wall of the substrate tube has an azimuthally non-uniform doping concentration. Alternatively, a rotation of the substrate tube may be adjusted to create opposing temperature gradients within the substrate tube, causing non-uniform layer deposition to occur on different sides of the substrate tube in alternating passes.
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公开(公告)号：US20240097406A1
公开(公告)日：2024-03-21
申请号：US18066728
申请日：2022-12-15
Applicant: Lumentum Operations LLC
Inventor： Martin H. MUENDEL , Matthew Glenn PETERS , James J. MOREHEAD , John G. BAI , Victor ROSSIN
IPC: H01S5/40 , H01S5/02255 , H01S5/028 , H01S5/10
CPC classification number: H01S5/4087 , H01S5/02255 , H01S5/028 , H01S5/1082
Abstract: In some implementations, a laser diode array may comprise a cavity that includes a rear facet and a front facet and multiple emitters that are transversely single mode and disposed within the cavity. In some implementations, the multiple emitters each include a seeding section having a constant emitter width that is single mode at the rear facet and a flared section having a monotonically expanding emitter width that increases adiabatically over a majority of a length of the cavity such that outputs from the multiple emitters are single mode at the front facet. In some implementations, the emitter width is less than twenty micrometers at the front facet.
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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.
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公开(公告)号：US20220344910A1
公开(公告)日：2022-10-27
申请号：US17305484
申请日：2021-07-08
Applicant: Lumentum Operations LLC
Inventor： Martin H. MUENDEL , Victor ROSSIN , James J. MOREHEAD , John G. BAI
Abstract: In some implementations, an optical device (e.g., a monolithic master oscillator power amplifier (MOPA) diode) may include a first facet, one or more gratings, an amplifier structure terminated with a second facet, and an oscillator array that includes multiple singlemode oscillators coupled to the first facet and to the one or more gratings. In some implementations, the multiple singlemode oscillators may be configured to generate multiple seed beams and to transmit the multiple seed beams into the amplifier structure through the one or more gratings.
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Patent Agency Ranking
公开(公告)号：US20190140421A1
公开(公告)日：2019-05-09
申请号：US16057590
申请日：2018-08-07
Applicant: Lumentum Operations LLC
Inventor： Mateusz PLEWICKI , Martin H. MUENDEL
Abstract: An optical pump may include a polarization element to separate pump light into a first component beam and a second component beam, wherein the polarization element is to separate the pump light such that the first component beam has a first polarization and the second component beam has a second polarization that is different from the first polarization. The optical pump may include a gain medium to absorb a portion of the first component beam and a portion of the second component beam, and transmit an unabsorbed portion of the first component beam and an unabsorbed portion of the second component beam. The optical pump may include one or more optical elements to at least partially isolate a pump source from the unabsorbed portion of the first component beam and the unabsorbed portion of the second component beam.
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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
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.
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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
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.
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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
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.
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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
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.
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