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公开(公告)号：US20160320565A1
公开(公告)日：2016-11-03
申请号：US15143314
申请日：2016-04-29
Applicant: nLIGHT, Inc.
Inventor： Aaron Brown , Dahv A.V. Kliner , Scott R. Karlsen , Jeremy Young , Ryan Hawke , David R. Balsley , Ron Stevens
CPC classification number: G02B6/385 , G01M11/33 , G06T7/0004 , G06T2207/10152 , G06T2207/30164 , H04N5/2256 , H04N5/2257
Abstract: An apparatus includes a camera, a dark field illumination source, and a fiber inspection housing including a fiber connector input situated to receive an optical fiber connector so that an optical fiber output end of the optical fiber connector is removably insertable into an interior region of the fiber inspection housing and securable at a predetermined location in the interior region, a camera input situated to receive and secure the camera so that the camera is in optical communication with the interior region and the optical fiber output end, and a dark field illumination source input situated to receive the dark field illumination source so that light emitted from the dark field illumination source is received by the optical fiber output end at a dark field illumination angle and is scattered by contamination or defects associated with the optical fiber output end so as to be detectable by the camera.
Abstract translation: 一种装置包括照相机，暗视场照明源和光纤检查外壳，其包括光纤连接器输入端，该光纤连接器输入端接收光纤连接器，使得光纤连接器的光纤输出端可移除地插入到光纤连接器的内部区域 光纤检查外壳，并且可固定在内部区域中的预定位置;照相机输入端，用于接收和固定相机，使得照相机与内部区域和光纤输出端光学通信，以及暗场照明源输入 位于接收暗场照明源，使得从暗场照明源发射的光在暗场照射角度被光纤输出端接收，并且通过与光纤输出端相关联的污染或缺陷而散射，从而被 可由相机检测。
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公开(公告)号：US20200043736A1
公开(公告)日：2020-02-06
申请号：US16598210
申请日：2019-10-10
Applicant: nLIGHT, Inc.
Inventor： Robert J. Martinsen , Scott R. Karlsen , Ken Gross
IPC: H01L21/268 , H01L21/02 , B23K26/00 , B23K26/0622
Abstract: Laser pulses from pulsed fiber lasers are directed to an amorphous silicon layer to produce a polysilicon layer comprising a disordered arrangement of crystalline regions by repeated melting and recrystallization. Laser pulse durations of about 0.5 to 5 ns at wavelength range between about 500 nm and 1000 nm, at repetition rates of 10 kHz to 10 MHz can be used. Line beam intensity uniformity can be improved by spectrally broadening the laser pulses by Raman scattering in a multimode fiber or by applying varying phase delays to different portions of a beam formed with the laser pulses to reduce beam coherence.
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公开(公告)号：US20190146200A1
公开(公告)日：2019-05-16
申请号：US16149712
申请日：2018-10-02
Applicant: nLIGHT, Inc.
Inventor： Scott R. Karlsen , Robert J. Martinsen , Keith W. Kennedy
IPC: G02B19/00
Abstract: A laser system capable of producing a stable and accurate high-power output beam from one or more input beams of corresponding laser sources comprises one or more optical elements configured to receive the input beams wherein at least one of said one or more optical elements is made of high purity fused silica.
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公开(公告)号：US10670872B2
公开(公告)日：2020-06-02
申请号：US15934959
申请日：2018-03-24
Applicant: nLIGHT, Inc.
Inventor： Scott R. Karlsen , Brian M. Victor , Roger L. Farrow
Abstract: An all-fiber optical beam switch mechanism includes a first length of fiber through which an incident optical beam having beam characteristics propagates along a first propagation path and which has a first refractive index profile (RIP). The first RIP enables, in response to an applied perturbation, modification of the optical beam to form an adjusted optical beam that is movable to propagate along a second propagation path. A second length of fiber is coupled to the first length of fiber and formed with multiple spaced-apart, non-coaxial confinement cores. A selected state of applied perturbation moves the second propagation path of the adjusted optical beam to a position of a selected corresponding one of the multiple confinement cores to confine and thereby direct the adjusted optical beam to a corresponding beam output location at the output of the second length of fiber.
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公开(公告)号：US10466494B2
公开(公告)日：2019-11-05
申请号：US15384059
申请日：2016-12-19
Applicant: nLIGHT, Inc.
Inventor： Scott A. Lerner , R. Kirk Price , Scott R. Karlsen
IPC: G02B27/09
Abstract: An apparatus includes beam shearing optics situated to receive a collimated beam and to shear the collimated beam along a first direction so as to form a plurality of adjacent collimated beam portions, and homogenization optics situated to receive and homogenize the adjacent collimated beam portions along at least the first direction so as to produce a homogenized output beam. A method includes shearing a collimated beam having a beam parameter product (bpp) along an axis so as to form a plurality of sheared collimated beam portions, and arranging the sheared collimated beam portions adjacent to each other so that a line beam having a length and thickness that is formed with the light from the sheared collimated beam portions has a lower bpp associated with the line beam thickness than the bpp of the collimated beam along the axis.
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Patent Agency Ranking
公开(公告)号：US10295405B2
公开(公告)日：2019-05-21
申请号：US15079664
申请日：2016-03-24
Applicant: nLIGHT, Inc.
Inventor： Scott R. Karlsen , Jay Small , Mitch Stanek , Vito P. Errico , Cary S. Kiest
Abstract: A monitoring system for a multi-laser module includes detectors corresponding to each laser and situated to receive a portion of the associated laser beam uncombined with other beams. Laser characteristics are measured and stored, and in operation are used to identify device failures. A comparator receives a reference value and compares the reference value with a current operational value. If the current value is less that the reference value, a possible failure is indicated. Signal cross-coupling among the detectors is also used to identify undesirable scattering that can be associated with surface contamination or device failure.
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公开(公告)号：US10141707B2
公开(公告)日：2018-11-27
申请号：US15596924
申请日：2017-05-16
Applicant: NLIGHT, Inc.
Inventor： Scott R. Karlsen , Walter R. Sanders
Abstract: A fiber laser system includes a fiber laser connector having a housing to terminate a fiber that generates a laser beam. A chamber extends internally along a length of the housing. A light trap includes a plurality of threads formed along a wall of the chamber to trap light reflected back to the fiber laser connector in response to an application of the laser beam to a workpiece.
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公开(公告)号：US20180217386A1
公开(公告)日：2018-08-02
申请号：US15934959
申请日：2018-03-24
Applicant: nLIGHT, Inc.
Inventor： Scott R. Karlsen , Brian M. Victor , Roger L. Farrow
CPC classification number: G02B27/0994 , G02B6/02042 , G02B6/0281 , G02B6/0288 , G02B6/03611 , G02B6/03627 , G02B6/03633 , G02B6/03638 , G02B6/0365 , G02B6/03688 , G02B6/14 , G02B6/262 , G02B6/3502 , G02B6/3574
Abstract: An all-fiber optical beam switch mechanism includes a first length of fiber through which an incident optical beam having beam characteristics propagates along a first propagation path and which has a first refractive index profile (RIP). The first RIP enables, in response to an applied perturbation, modification of the optical beam to form an adjusted optical beam that is movable to propagate along a second propagation path. A second length of fiber is coupled to the first length of fiber and formed with multiple spaced-apart, non-coaxial confinement cores. A selected state of applied perturbation moves the second propagation path of the adjusted optical beam to a position of a selected corresponding one of the multiple confinement cores to confine and thereby direct the adjusted optical beam to a corresponding beam output location at the output of the second length of fiber.
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公开(公告)号：US20170176758A1
公开(公告)日：2017-06-22
申请号：US15384059
申请日：2016-12-19
Applicant: nLIGHT, Inc.
Inventor： Scott A. Lerner , R. Kirk Price , Scott R. Karlsen
Abstract: An apparatus includes beam shearing optics situated to receive a collimated beam and to shear the collimated beam along a first direction so as to form a plurality of adjacent collimated beam portions, and homogenization optics situated to receive and homogenize the adjacent collimated beam portions along at least the first direction so as to produce a homogenized output beam. A method includes shearing a collimated beam having a beam parameter product (bpp) along an axis so as to form a plurality of sheared collimated beam portions, and arranging the sheared collimated beam portions adjacent to each other so that a line beam having a length and thickness that is formed with the light from the sheared collimated beam portions has a lower bpp associated with the line beam thickness than the bpp of the collimated beam along the axis.
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公开(公告)号：US20240113488A1
公开(公告)日：2024-04-04
申请号：US18275604
申请日：2021-08-06
Applicant: NLIGHT, INC.
Inventor： Scott R. Karlsen , Aaron BROWN , Jay SMALL , Stefano ORIGLIA , Andrea BRAGLIA
CPC classification number: H01S3/0078 , G02B5/26 , G02B27/30
Abstract: Some embodiments may include an apparatus usable in a laser system. The apparatus may include at least one optical filter to receive a laser beam or laser light along a first axis, the laser beam or laser light generated by the laser system, wherein the at least one optical filter is configured to reflect one of light having a selected wavelength or a remainder of the laser light along a second axis that is non-parallel with the first axis and pass the other of the light having the selected wavelength or the remainder along a third axis that is parallel to the first axis. Other embodiments may be disclosed and/or claimed.
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