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公开(公告)号：US20180017841A1
公开(公告)日：2018-01-18
申请号：US15716159
申请日：2017-09-26
CPC分类号： G02F1/37 , G02F1/3501 , G02F1/353 , G02F1/3551 , G02F2001/3503 , G02F2001/3505 , G02F2001/3507 , G02F2001/3509 , G02F2001/354 , G02F2201/20 , G02F2203/055 , H01S3/0092
摘要： A second harmonic generator may include a combiner to combine a fundamental optical beam with a residual fundamental optical beam. The second harmonic generator may include a second harmonic crystal, coupled to the combiner, to generate a second harmonic optical beam from the fundamental optical beam and the residual fundamental optical beam. Upon generation of the second harmonic optical beam, the residual fundamental optical beam may exit the second harmonic crystal.
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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
IPC分类号： H01S5/40 , H01S5/02255 , H01S5/028 , H01S5/10
CPC分类号： H01S5/4087 , H01S5/02255 , H01S5/028 , H01S5/1082
摘要： 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：US20220344910A1
公开(公告)日：2022-10-27
申请号：US17305484
申请日：2021-07-08
摘要： 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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公开(公告)号：US20230008662A1
公开(公告)日：2023-01-12
申请号：US17447373
申请日：2021-09-10
摘要： 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：US20190317280A1
公开(公告)日：2019-10-17
申请号：US16457018
申请日：2019-06-28
摘要： 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.
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公开(公告)号：US20220334327A1
公开(公告)日：2022-10-20
申请号：US17304999
申请日：2021-06-29
摘要： 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：US20210373261A1
公开(公告)日：2021-12-02
申请号：US16947465
申请日：2020-08-03
摘要： 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：US20210265801A1
公开(公告)日：2021-08-26
申请号：US16876708
申请日：2020-05-18
发明人： Martin H. MUENDEL , Richard D. FAULHABER , Michael LOVELADY , James J. MOREHEAD , Andreas OEHLER
IPC分类号： H01S3/094
摘要： An optical fiber may include a core in which core-guided light generated by one or more light sources propagates along a length of the at least one optical fiber, one or more claddings, surrounding the core, to guide cladding-guided light generated by the one or more light sources along the length of the at least one optical fiber, and a reflector structure machined into the at least one optical fiber. The reflector structure may include multiple angled facets arranged at one or more respective angles relative to an axis of the optical fiber to reflect at least a portion of the core-guided light and/or the cladding-guided light passing through the optical fiber.
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公开(公告)号：US20160291443A1
公开(公告)日：2016-10-06
申请号：US15177140
申请日：2016-06-08
CPC分类号： G02F1/3501 , G02F1/353 , G02F1/3551 , G02F1/37 , G02F2001/3503 , G02F2001/3505 , G02F2001/3507 , G02F2001/3509 , G02F2001/354 , G02F2201/20 , G02F2203/055 , H01S3/0092
摘要： A cascaded harmonic generator, for cascaded optical harmonic generation from an optical beam provided by a laser source, may include a second harmonic generator to generate a second harmonic optical beam based on a residual beam associated with the optical beam. The cascaded harmonic generator may include a third harmonic generator to generate a third harmonic optical beam based on the second harmonic optical beam and the optical beam. The third harmonic generator may be positioned in an optical path upstream from the second harmonic generator. A harmonic generator delay time, associated with the optical path, may be approximately equal to, or may be an approximate integer multiple of, a laser source round-trip time.
摘要翻译： 用于由激光源提供的光束的级联光谐波产生的级联谐波发生器可以包括二次谐波发生器，用于基于与光束相关联的剩余光束产生二次谐波光束。 级联谐波发生器可以包括基于二次谐波光束和光束产生三次谐波光束的三次谐波发生器。 三次谐波发生器可以位于从二次谐波发生器上游的光路中。 与光路相关联的谐波发生器延迟时间可以近似等于或可以是激光源往返时间的近似整数倍。
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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
摘要： 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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