公开(公告)号：US10217691B2

公开(公告)日：2019-02-26

申请号：US15238192

申请日：2016-08-16

Applicant: nLIGHT, Inc.

Inventor： Walter R. Sanders ,  Manoj Kanskar

IPC: H01L23/373 ,  H01S5/024 ,  H01L23/36

Abstract: Methods, systems and an apparatus relating to a heat spreader to be coupled to a heat source having a heat source coefficient of thermal expansion (HS CTE), the heat spreader comprising an anisotropic material having a high expansion axis. The heat spreader also including a surface to be coupled to the heat source, wherein the high expansion axis of the anisotropic material is oblique to the surface of the heat spreader and wherein the high expansion axis of the anisotropic material is oriented at a first angle of rotation about a first axis of the heat spreader wherein the first angle of rotation is selected to optimize a match of a first CTE of the heat spreader with the HS CTE.

公开(公告)号：US20190058305A1

公开(公告)日：2019-02-21

申请号：US16112397

申请日：2018-08-24

Applicant: nLight, Inc.

Inventor： David Martin Hemenway ,  Manoj Kanskar

IPC: H01S5/10 ,  H01S5/14 ,  H01S5/022 ,  H01S5/026 ,  H01S5/40 ,  H01S5/187 ,  H01S5/20 ,  H01S5/00 ,  H01S5/12 ,  H01S5/16

Abstract: A high brightness diode laser package includes a plurality of flared laser oscillator waveguides arranged on a stepped surface to emit respective laser beams in one or more emission directions, a plurality of optical components situated to receive the laser beams from the plurality of flared laser oscillator waveguides and to provide the beams in a closely packed relationship, and an optical fiber optically coupled to the closely packed beams for coupling the laser beams out of the diode laser package.

公开(公告)号：US20190044302A1

公开(公告)日：2019-02-07

申请号：US16052517

申请日：2018-08-01

Applicant: nLIGHT, Inc.

Inventor： Manoj Kanskar ,  Zhigang Chen

IPC: H01S5/022 ,  H01S5/323 ,  H01S5/024

Abstract: Laser diode submounts include a SiC substrate on which a thick conductive layer is supplied to use in mounting a laser diode. The thick conductive layer is typically gold or copper, and can be electrically coupled to a base laser that is used to define laser diode couplings.

公开(公告)号：US20180175588A1

公开(公告)日：2018-06-21

申请号：US15579109

申请日：2016-06-06

Applicant: nLIGHT, Inc.

Inventor： Manoj Kanskar

IPC: H01S5/125 ,  H01S5/10

CPC classification number: H01S5/125 ,  H01S5/06256 ,  H01S5/1003 ,  H01S5/1007 ,  H01S5/1064 ,  H01S5/1085 ,  H01S2301/163

Abstract: A semiconductor laser device is disclosed that includes a laser resonator situated to produce a laser beam, with the laser resonator including an angled distributed Bragg reflector (a-DBR) region including first and second ends defining an a-DBR region length corresponding to a Bragg resonance condition with the first end being uncleaved and including a first mode hop region having a first end optically coupled to the a-DBR region first end and extending a first mode hop region length associated with the a-DBR region length to a second end so as to provide a variable longitudinal mode selection for the laser beam.

公开(公告)号：US09705289B2

公开(公告)日：2017-07-11

申请号：US14984602

申请日：2015-12-30

Applicant: NLIGHT, INC.

Inventor： Manoj Kanskar ,  Raymond Kirk Price ,  Jay Small ,  David Martin Hemenway ,  Zhigang Chen

IPC: G02B27/30 ,  H01S5/40 ,  H01S5/022 ,  G02B6/42 ,  G02B5/09 ,  G02B5/10 ,  H01S3/08

CPC classification number: H01S5/4012 ,  G02B5/09 ,  G02B5/10 ,  G02B6/4204 ,  G02B6/4296 ,  G02B19/0028 ,  G02B19/0057 ,  G02B27/30 ,  H01S3/08059 ,  H01S5/02248 ,  H01S5/02284 ,  H01S5/4043 ,  H01S5/4062

Abstract: An apparatus includes at least one multijunction diode laser situated to emit a plurality of beams along respective mutually parallel propagation axes, each beam having an associated mutually parallel slow axes and associated collinear fast axes, a fast axis collimator situated to receive and collimate the plurality of beams along the corresponding fast axes so as to produce corresponding fast axis collimated beams that propagate along associated non-parallel axes, and a reflector situated to receive the plurality of fast axis collimated beams and to reflect the beams so that the reflected fast axis collimated beams propagate along substantially parallel axes.

公开(公告)号：US20240053554A1

公开(公告)日：2024-02-15

申请号：US18222949

申请日：2023-07-17

Applicant: NLIGHT, INC.

Inventor： Bryce TOKMAKIAN ,  Mark J. DEFRANZA ,  Eric MARTIN ,  Manoj Kanskar

IPC: G02B6/42

CPC classification number: G02B6/4268 ,  G02B6/4202

Abstract: Various embodiments provide apparatuses, systems, and methods related to a dual-sided optical package. The package may include a base plate with a first side and a second side opposite the first side. The base plate may have a coolant channel positioned between the first side and the second side. A first set of optics may be coupled with the first side of the base plate, and a second set of optics may be coupled with the second side of the base plate. Other embodiments may be described and/or claimed.

公开(公告)号：US20230304750A1

公开(公告)日：2023-09-28

申请号：US18122638

申请日：2023-03-16

Applicant: NLIGHT, INC.

Inventor： Mark J. DEFRANZA ,  Bryce TOKMAKIAN ,  Eric MARTIN ,  Manoj Kanskar

IPC: F28F9/26 ,  F28F21/08 ,  F28F21/04 ,  F28D15/02 ,  H01S5/024

CPC classification number: F28F9/26 ,  F28F21/085 ,  F28F21/04 ,  F28D15/0275 ,  H01S5/02423 ,  F28F2275/14 ,  F28F2280/02

Abstract: Various embodiments provide apparatuses, systems, and methods related to a heat sink with one or more removable inserts. Respective inserts may include one or more fins that define one or more channels for flow of cooling fluid. The fins may be formed of a composite material that is different than a material of the heat sink body. Other embodiments may be described and/or claimed.

公开(公告)号：US20220181835A1

公开(公告)日：2022-06-09

申请号：US17555144

申请日：2021-12-17

Applicant: NLIGHT, INC.

Inventor： Manoj Kanskar ,  Jiamin Zhang

IPC: H01S3/067 ,  G02B6/02 ,  G02B6/24 ,  H01S5/065 ,  H01S3/10 ,  H01S3/23 ,  H01S3/094

Abstract: In an example, a tandem pumped fiber amplifier may include a seed laser, one or more diode pumps, and a single or plural active core fiber. The single or plural active core fiber may include a first section to operate as an oscillator and a second different section to operate as a power amplifier. The one or more diode pumps may be optically coupled to the first section of the single or plural active core fiber, and the seed laser may be optically coupled to the single active core or an innermost core of the plural active core fiber.

公开(公告)号：US11063404B1

公开(公告)日：2021-07-13

申请号：US16570297

申请日：2019-09-13

Applicant: nLIGHT, Inc.

Inventor： Manoj Kanskar

IPC: H01S5/10 ,  H01S5/026 ,  H01S5/40 ,  H01L33/04 ,  H01S5/065 ,  H01S5/20 ,  H01S5/34 ,  H01S5/028

Abstract: Disclosed are embodiments of bidirectionally emitting semiconductor (BEST) laser architectures including higher order mode suppression structures. The higher order mode suppression structures are centrally located and extend from an inner transition boundary, which may be established by confronting high reflector (HR) facets in some embodiments or a central plane defining two sides of a unitary, bidirectional optical cavity in other embodiments. Examples of the higher order mode suppression structures include narrow regions of bidirectional flared laser oscillator waveguide (FLOW) devices, which are also referred to as reduced mode diode (REM) devices; high-index regions of bidirectional higher-order mode suppressed laser (HOMSL) devices; and non- or less-etched gain-guided lateral waveguides of bidirectional low divergence semiconductor laser (LODSL) devices. The aforementioned devices may also include scattering features, distributed feedback (DFB) gratings, distributed Bragg reflection (DBR) gratings, and combination thereof that also act as supplemental higher order mode suppression structures.

公开(公告)号：US10658813B2

公开(公告)日：2020-05-19

申请号：US16001734

申请日：2018-06-06

Applicant: nLIGHT, Inc.

Inventor： Zhigang Chen ,  Manoj Kanskar

IPC: H01S5/026 ,  G02B27/09 ,  G02B6/122 ,  H01S5/20 ,  H01S5/10 ,  G02B6/12 ,  H01S5/22 ,  H01S5/00 ,  H01S5/12 ,  H01S5/40 ,  H01S5/028

Abstract: Apparatus comprise a semiconductor waveguide extending along a longitudinal axis and including a first waveguide section and a second waveguide section, wherein a lateral refractive index difference defining the semiconductor waveguide is larger for the first waveguide section than for the second waveguide section, and an output facet situated on the longitudinal axis of the semiconductor waveguide so as to emit a laser beam propagating in the semiconductor waveguide, wherein the first waveguide section is situated between the second waveguide section and the output facet and wherein the lateral refractive index difference suppresses emission of higher order transverse modes in the laser beam emitted by the output facet.