公开(公告)号：US20170149203A1

公开(公告)日：2017-05-25

申请号：US15355996

申请日：2016-11-18

Applicant: NLIGHT, INC.

Inventor： Robert Joseph Foley

IPC: H01S5/00 ,  G05B19/4065 ,  H01S5/40 ,  G06F21/31 ,  H01S3/094 ,  H01S3/13

Abstract: A laser diode system includes plurality of laser pumps, each of the plurality of laser pumps including a plurality of laser diode drivers and a plurality of laser diode elements, wherein each of the plurality of laser diode drivers is electrically coupled to power at least two of the plurality of laser diode elements. A combiner electrically is coupled to the plurality of laser diode elements to combine an output of each of the plurality of laser pumps to generate a combined output light. A controller identifies a failed laser pump or a failed laser diode element, receives an encoded key to gain access to the controller, and disables the failed laser pump or the failed laser diode element based at least in part on authenticating the encoded key.

公开(公告)号：US20160209267A1

公开(公告)日：2016-07-21

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

IPC: G01J1/42 ,  H01S5/042 ,  H01S5/40 ,  H01S5/00

CPC classification number: G01J1/4257 ,  G01J1/0414 ,  G01J1/0437 ,  G01J1/4228 ,  H01S5/0014 ,  H01S5/042 ,  H01S5/4012 ,  H01S5/4025

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.

Abstract translation: 用于多激光模块的监视系统包括对应于每个激光器并且被定位成接收未与其它光束组合的相关激光束的一部分的检测器。 激光特性被测量和存储，并且在操作中用于识别设备故障。 比较器接收参考值并将参考值与当前操作值进行比较。 如果当前值小于参考值，则指示可能的故障。 检测器之间的信号交叉耦合也用于识别可能与表面污染或器件故障相关的不期望的散射。

公开(公告)号：US20250076668A1

公开(公告)日：2025-03-06

申请号：US18696775

申请日：2022-09-30

Applicant: nLIGHT, Inc.

Inventor： Roger L. Farrow ,  Dahv A.V. Kliner ,  Juan Carlos LUGO ,  Brendan G. O'DEA

IPC: G02B27/09 ,  G02B6/036 ,  G02B6/14 ,  G02B6/26

Abstract: Disclosed are optical beam delivery devices and methods to produce, from a single-mode input beam having a fundamental mode and an M2 beam quality of about 1.5 or less, an output beam having an adjustable spatial intensity distribution that is adjustable between near Gaussian and ring-shaped profiles, the near Gaussian profile corresponding to an M2 beam quality of about 1.5 or less. A first length of optical fiber is for adjusting the single-mode input beam to generate an adjustable beam based on controllable perturbation applied to the first length of optical fiber. A second length of optical fiber is for coupling the adjustable beam into one or both a central core confinement region and an annular higher-index confinement region. The second length of optical fiber is configured to provide at its output the output beam having the adjustable spatial intensity distribution.

公开(公告)号：US20240264457A1

公开(公告)日：2024-08-08

申请号：US18636766

申请日：2024-04-16

Applicant: nLIGHT, Inc.

Inventor： Jay Small ,  Robert J. Martinsen

IPC: G02B27/32 ,  B22F10/28 ,  B22F10/31 ,  B22F12/44 ,  B22F12/49 ,  B22F12/90 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

CPC classification number: G02B27/32 ,  B22F10/28 ,  B22F10/31 ,  B22F12/44 ,  B22F12/49 ,  B22F12/90 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: A method includes producing a fiducial source beam with an optical source, and forming at least one transient optical fiducial on a laser processing target that is in a field of view of a laser scanner situated to scan a laser processing beam across the laser processing target, with an optical fiducial pattern generator that receives the fiducial source beam, to adjust a positioning of the laser processing beam relative to the at least one transient optical fiducial.

公开(公告)号：US20240162676A1

公开(公告)日：2024-05-16

申请号：US18510073

申请日：2023-11-15

Applicant: nLIGHT, Inc.

Inventor： Tyson L. LOWDER ,  Robert Joseph FOLEY

IPC: H01S3/0941 ,  H01S3/094 ,  H01S3/131

CPC classification number: H01S3/09415 ,  H01S3/094076 ,  H01S3/1315

Abstract: A laser system may include a gain medium; and pump modules to energize the gain medium or a single pump emitter to energize the gain medium; and circuitry to: configure a pump emitter of the pump modules to activate at a first intensity at a first time, or configure a pump emitter of the single pump module to activate at a reduced intensity at the first time; and the circuitry to: configure one or more next pumps emitters of the pump modules to activate at one or more second intensities, respectively, and at one or more second times, respectively, or configure the single pump emitter to activate at one or more second intensities at the one or more second times, respectively, wherein the one or more second times are delayed by one or more delay amounts, respectively, relative to the first time.

公开(公告)号：US11902494B2

公开(公告)日：2024-02-13

申请号：US17647929

申请日：2022-01-13

Applicant: nLIGHT, Inc.

Inventor： Bodo Schmidt ,  Paul S. Banks ,  Charles Stewart Tuvey

IPC: H04N13/254 ,  G01S17/10 ,  G01S7/484 ,  G01S7/486 ,  G01S7/499 ,  G02B30/25 ,  G01S17/894

CPC classification number: H04N13/254 ,  G01S7/484 ,  G01S7/486 ,  G01S7/499 ,  G01S17/10 ,  G01S17/894 ,  G02B30/25

Abstract: Systems and methods for reducing the deleterious effects of specular reflections (e.g., glint) on active illumination systems are disclosed. An example system includes an illuminator or light source configured to illuminate a scene with electromagnetic radiation having a defined polarization orientation. The system also includes a receiver for receiving portions of the electromagnetic radiation reflected or scatter from the scene. Included in the receiver is a polarizer having a polarization axis crossed with the polarization orientation of the emitted electromagnetic radiation. By crossing the polarizer with the polarization of the emitted electromagnetic radiation, the polarizer may filter out glint or specular reflections in the electromagnetic radiation returned from the scene.

公开(公告)号：US11858842B2

公开(公告)日：2024-01-02

申请号：US16879533

申请日：2020-05-20

Applicant: NLIGHT, INC.

Inventor： Aaron Brown ,  Aaron Ludwig Hodges ,  Dahv A. V. Kliner

IPC: C03B37/15 ,  G02B6/14 ,  C03B40/00 ,  G02B6/28 ,  G02B6/036 ,  G02B6/42 ,  G02B6/028 ,  G02B6/26

CPC classification number: C03B37/15 ,  C03B40/00 ,  G02B6/14 ,  G02B6/28 ,  G02B6/0281 ,  G02B6/0365 ,  G02B6/03616 ,  G02B6/03627 ,  G02B6/03633 ,  G02B6/03638 ,  G02B6/03688 ,  G02B6/262 ,  G02B6/4296

Abstract: Fiber bending mechanisms vary beam characteristics by deflecting or bending one or more fibers, by urging portions of one or more fibers toward a fiber shaping surface having a selectable curvature, or by selecting a fiber length that is to be urged toward the fiber shaping surface. In some examples, a fiber is secured to a flexible plate to conform to a variable curvature of the flexible plate. In other examples, a variable length of a fiber is pulled or pushed toward a fiber shaping surface, and the length of the fiber or a curvature of the flexible plate provide modification of fiber beam characteristics.

公开(公告)号：US11824323B1

公开(公告)日：2023-11-21

申请号：US16693806

申请日：2019-11-25

Applicant: nLIGHT, Inc.

Inventor： Manoj Kanskar

IPC: H01S5/024 ,  H01S5/028 ,  H01S5/40 ,  H01S5/02251 ,  H01S5/02253 ,  H01S5/02255

CPC classification number: H01S5/02423 ,  H01S5/0287 ,  H01S5/02251 ,  H01S5/02253 ,  H01S5/02255 ,  H01S5/4025 ,  H01S5/4012 ,  H01S5/4075 ,  H01S5/4081

Abstract: The disclosed diode laser packages include a carrier having an optics-mounting surface to which first and second sets of collimating and turning optics are mounted. The carrier includes a heatsink receptacle medially located between the first and second sets. A cooling plenum has a diode-mounting surface and includes heatsink material disposed in the heatsink receptacle. The cooling plenum further has an inlet, an outlet, and a coolant passageway defined between the inlet and the outlet. The coolant passageway is sized to receive the heatsink material disposed in heatsink receptacle. Multiple semiconductor laser diode devices are each mounted atop the diode-mounting surface and positioned for bidirectional emission toward the first and second sets of collimating and turning optics. The multiple semiconductor laser diode devices are thermally coupled to the heatsink material through which coolant is deliverable by the coolant passageway.

公开(公告)号：US11811186B2

公开(公告)日：2023-11-07

申请号：US17222849

申请日：2021-04-05

Applicant: NLIGHT, INC.

Inventor： Roger L. Farrow ,  Dahv A. V. Kliner

IPC: H01S3/067 ,  G02B6/255 ,  G02B6/42 ,  G02B6/26

CPC classification number: H01S3/0675 ,  G02B6/2551 ,  G02B6/264 ,  G02B6/4296 ,  H01S3/06754

Abstract: An apparatus includes an optical gain fiber having a core, a cladding surrounding the core, the core and cladding defining an optical gain fiber numerical aperture, and a multimode fiber having a core with a larger radius than a radius of the optical gain fiber core, a cladding surrounding the core, the core and cladding of the multimode fiber defining a multimode fiber stable numerical aperture that is larger than the optical gain fiber numerical aperture, the multimode fiber being optically coupled to the optical gain fiber so as to receive an optical beam propagating in the optical gain fiber and to stably propagate the received optical beam in the multimode fiber core with low optical loss associated with the optical coupling.

公开(公告)号：US11808973B2

公开(公告)日：2023-11-07

申请号：US17322777

申请日：2021-05-17

Applicant: nLIGHT, Inc.

Inventor： Ryan Hawke ,  Teemu Kokki ,  Shaun Hampton ,  Chris Luetjen

IPC: G02B6/036 ,  G02B6/245 ,  G02B6/255 ,  H01S3/067

CPC classification number: G02B6/036 ,  G02B6/245 ,  G02B6/2558 ,  H01S3/06708

Abstract: Spliced multi-clad optical fibers with a cladding light stripper (CLS) encapsulating the splice. The splice may facilitate conversion between two optical fibers having different architectures, such as different core and/or cladding dimensions. The CLS may comprise a first length of fiber on a first side of the splice, and a second length of fiber on a second side of the splice, encapsulating the splice within the lengths of the CLS. The splice may abut one or more of the lengths of the CLS, or may be separated from one or more lengths of the CLS by an intermediate length of a first and/or second fiber joined by the splice.