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公开(公告)号：US12298555B2
公开(公告)日：2025-05-13
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
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.
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公开(公告)号：US11415751B2
公开(公告)日：2022-08-16
申请号：US17167885
申请日：2021-02-04
Applicant: Lumentum Operations LLC
Inventor： Jeff Gregg , Xiang Peng , Richard D. Faulhaber , Patrick Gregg
Abstract: An optical fiber includes a core configured to transmit laser light and a cladding that surrounds the core. In some implementations, an outer surface region of the cladding is tapered or comprises a plurality of notches. The outer surface region of the cladding is configured to cause an aiming beam that falls incident upon the outer surface region of the cladding at a first incidence angle to fall incident upon an outer surface region of the core at a second incidence angle to allow the aiming beam to couple into the core.
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公开(公告)号：US12210190B2
公开(公告)日：2025-01-28
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
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.
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公开(公告)号：US11619788B2
公开(公告)日：2023-04-04
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
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.
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公开(公告)号：US11650367B2
公开(公告)日：2023-05-16
申请号：US16853469
申请日：2020-04-20
Applicant: Lumentum Operations LLC
Inventor： Patrick Gregg , Martin H. Muendel , Richard D. Faulhaber
CPC classification number: G02B6/0281 , G02B6/262 , G02B6/32 , B23K26/0648
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.
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Patent Agency Ranking
公开(公告)号：US11592612B2
公开(公告)日：2023-02-28
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：US11243364B2
公开(公告)日：2022-02-08
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
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.
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公开(公告)号：US11789335B2
公开(公告)日：2023-10-17
申请号：US17453441
申请日：2021-11-03
Applicant: Lumentum Operations LLC
Inventor： Richard D. Faulhaber , Martin H. Muendel , Patrick Gregg
CPC classification number: G02F1/365 , G02F1/3536
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：US11624932B2
公开(公告)日：2023-04-11
申请号：US16592488
申请日：2019-10-03
Applicant: Lumentum Operations LLC
Inventor： Martin H. Muendel , Patrick Gregg
IPC: G02B27/28 , B23K26/064 , B23K26/073 , B23K26/08 , B23K26/38
Abstract: An optical device may include a polarization splitter to split a unidirectional rotary optical beam into a first rotary optical beam having a first polarization state and a second rotary optical beam having a second polarization state. The unidirectional rotary optical beam and the second rotary optical beam may have optical power with a first direction of spatial rotation. The optical device may include a reflective element to reverse a parity of the first rotary optical beam in association with causing optical power of the first rotary optical beam to have a second direction of spatial rotation. The optical device may include a polarization combiner to, after reversal of the parity of the first rotary optical beam, combine the first rotary optical beam and the second rotary optical beam to create a bi-directional rotary optical beam having the first polarization state and the second polarization state.
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公开(公告)号：US11340467B2
公开(公告)日：2022-05-24
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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