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公开(公告)号：US20210231872A1
公开(公告)日：2021-07-29
申请号：US16839911
申请日：2020-04-03
Applicant: Lumentum Operations LLC
Inventor： Martin H. MUENDEL , Richard D. FAULHABER , Michael LOVELADY
IPC: G02B6/26
Abstract: An optical fiber endcap device may include an input facet spliced onto an input fiber and an output end through which counterpropagating light enters the optical fiber endcap device. The optical fiber endcap device further includes a plurality of angled facets that are arranged at respective angles relative to an axis of the optical fiber endcap device to reflect at least a portion of the counterpropagating light back through the output end of the optical fiber endcap device.
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公开(公告)号：US20200209468A1
公开(公告)日：2020-07-02
申请号：US16657070
申请日：2019-10-18
Applicant: Lumentum Operations LLC
Inventor： Vincent PETIT , Martin H. MUENDEL
Abstract: An optical fiber may comprise a core doped with one or more active ions to guide signal light from an input end of the optical fiber to an output end of the optical fiber, a cladding surrounding the core to guide pump light from the input end of the optical fiber to the output end of the optical fiber, and one or more inserts formed in the cladding surrounding the core. Each of the one or more inserts may have a geometry (e.g., a cross-sectional size, a helical pitch, and/or the like) that varies along a longitudinal length of the optical fiber, which may cause an absorption of the pump light to be modulated along the longitudinal length of the optical fiber.
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公开(公告)号：US20190193196A1
公开(公告)日：2019-06-27
申请号：US16213616
申请日：2018-12-07
Applicant: Lumentum Operations LLC
Inventor： Changgeng YE , Hongbo YU , Martin H. MUENDEL
IPC: B23K26/035 , G02B6/28 , C03C25/105
CPC classification number: B23K26/035 , C03C25/105 , G02B6/2821
Abstract: A method of manufacturing a side-coupling structure, associated with coupling an aiming beam from an aiming beam fiber into a laser beam fiber, may include removing a coating from a section of the laser beam fiber and removing a coating from a section of the aiming beam fiber. The method may further include bringing the section of the aiming beam fiber in physical contact with the section of the laser beam fiber in order to create the side-coupling structure. The method may further include recoating the section of the laser beam fiber and the section of the aiming beam fiber in order to coat the side-coupling structure.
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Patent Agency Ranking
公开(公告)号：US20180143377A1
公开(公告)日：2018-05-24
申请号：US15802897
申请日：2017-11-03
Applicant: Lumentum Operations LLC
Inventor： Martin H. MUENDEL , James J. Morehead
CPC classification number: G02B6/14 , C03B37/02745 , C03B37/15 , C03B2203/20 , C03B2203/29 , G02B6/02042 , G02B6/02338 , G02B6/024 , G02B6/036 , G02B6/03605 , G02B6/03611 , G02B6/105 , G02B6/262 , G02B6/264 , G02B6/2726
Abstract: 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 optical 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：US20180017841A1
公开(公告)日：2018-01-18
申请号：US15716159
申请日：2017-09-26
Applicant: Lumentum Operations LLC
Inventor： Martin H. MUENDEL , James J. MOREHEAD
CPC classification number: G02F1/37 , G02F1/3501 , G02F1/353 , G02F1/3551 , G02F2001/3503 , G02F2001/3505 , G02F2001/3507 , G02F2001/3509 , G02F2001/354 , G02F2201/20 , G02F2203/055 , H01S3/0092
Abstract: 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：US20170371097A1
公开(公告)日：2017-12-28
申请号：US15687052
申请日：2017-08-25
Applicant: Lumentum Operations LLC
Inventor： Zong Kwei WU , Kwang CHONG , Martin H. MUENDEL
CPC classification number: G02B6/02066 , B29D11/00663 , B29D11/00682 , G02B6/14 , G02B6/264 , G02B6/2852 , H01S3/06729 , H01S3/06733 , H01S3/094007
Abstract: A cladding light stripper may include a double-clad optical fiber having a core for guiding signal light, an inner cladding surrounding the core, and an outer cladding surrounding the inner cladding. The optical fiber may include a stripped portion forming an exposed section. The exposed section may include a plurality of spirally-arranged transversal notches disposed along the optical fiber to enable light to escape the inner cladding upon impinging on the plurality of notches. A circumferential segment of the optical fiber may include a single notch of the plurality of notches. Each of the plurality of notches may have a depth of only a partial distance to the core.
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公开(公告)号：US20160116679A1
公开(公告)日：2016-04-28
申请号：US14984483
申请日：2015-12-30
Applicant: Lumentum Operations LLC , Amada Holdings Co., Ltd.
Inventor： Martin H. MUENDEL , Dahv KLINER
IPC: G02B6/32 , B23K26/06 , B23K26/073 , G02B6/42
CPC classification number: G02B6/32 , B23K26/0626 , B23K26/0648 , B23K26/073 , B23K26/0734 , G02B6/262 , G02B6/4206 , G02B6/4216 , G02B6/4226 , G02B6/4296
Abstract: An optical delivery waveguide for a material laser processing system includes a small lens at an output end of the delivery waveguide, transforming laser beam divergence inside the waveguide into a spot size after the lens. By varying the input convergence angle and/or launch angle of the laser beam launched into the waveguide, the output spot size can be continuously varied, thus enabling a continuous and real-time laser spot size adjustment on the workpiece, without having to replace the delivery waveguide or a process head. A divergence of the laser beam can also be adjusted dynamically and in concert with the spot size.
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公开(公告)号：US20160111850A1
公开(公告)日：2016-04-21
申请号：US14884440
申请日：2015-10-15
Applicant: Lumentum Operations LLC
Inventor： Martin H. MUENDEL , Xiuquan MA
CPC classification number: H01S3/2391 , H01S3/08036 , H01S3/0805 , H01S3/08063 , H01S3/0811 , H01S5/141 , H01S5/4062 , H01S5/4068 , H01S5/4087
Abstract: A beam combiner may include source elements, each configured to output a beam of light locked at a center wavelength different from center wavelengths of other source elements. The beam combiner may include a dispersive element configured to combine the beams of light into a combined beam, and a beam separator configured to separate the combined beam into an output beam and a locking beam. The beam combiner may include a spatial filter configured to prevent crosstalk within the locking beam, and to redirect the locking beam to the source elements. The dispersive element may be configured to disperse the locking beam into constituent wavelength beams. Each constituent wavelength beam may be directed to a respective one of the source elements for locking that source element at its center wavelength, and may correspond in wavelength to the center wavelength of the respective source element.
Abstract translation: 光束组合器可以包括源元件，每个源元件被配置为输出锁定在不同于其它源元件的中心波长的中心波长的光束。 光束组合器可以包括被配置为将光束组合成组合光束的分散元件，以及被配置为将组合光束分离成输出光束和锁定光束的光束分离器。 光束组合器可以包括被配置为防止锁定光束内的串扰并且将锁定光束重定向到源元件的空间滤光器。 分散元件可以被配置为将锁定光束分散成组成的波长束。 每个构成波长光束可以被引导到源元件中的相应一个，用于将该源元件锁定在其中心波长处，并且可以在波长对应于相应源元件的中心波长。
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