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    Diode laser package for bidirectionally emitting semiconductor laser devices
    1.
    发明授权
    Diode laser package for bidirectionally emitting semiconductor laser devices 有权

    公开(公告)号：US11824323B1

    公开(公告)日：2023-11-21

    申请号：US16693806

    申请日：2019-11-25

    申请人： nLIGHT, Inc.

    发明人： Manoj Kanskar

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

    CPC分类号： H01S5/02423 ,  H01S5/0287 ,  H01S5/02251 ,  H01S5/02253 ,  H01S5/02255 ,  H01S5/4025 ,  H01S5/4012 ,  H01S5/4075 ,  H01S5/4081

    摘要： 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.

    TANDEM PUMPED FIBER AMPLIFIER
    2.
    发明申请
    TANDEM PUMPED FIBER AMPLIFIER 有权

    公开(公告)号：US20220190545A1

    公开(公告)日：2022-06-16

    申请号：US17687575

    申请日：2022-03-04

    申请人： NLight, Inc.

    发明人： Manoj Kanskar ,  Jiamin Zhang

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

    摘要： In an example, a tandem pumped fiber amplifier may include a seed laser, a first section coupled to an output of the seed laser, and a second section coupled to an output of the first section. The first section may operate as an oscillator, and may receive pump light from one or more diode pumps, and may the first section may be arranged to convert the one or more diode pumps into a tandem pump. The second section may operate as a power amplifier, and may include a length of a single or plural active core fiber. The tandem pumped fiber amplifier may be arranged to mitigate spectral broadening related to four-wave mixing.

    Diode laser apparatus with FAC lens out-of-plane beam steering
    3.
    发明授权
    Diode laser apparatus with FAC lens out-of-plane beam steering 有权

    公开(公告)号：US10833482B2

    公开(公告)日：2020-11-10

    申请号：US16269387

    申请日：2019-02-06

    申请人： nLIGHT, Inc.

    发明人： Zhigang Chen ,  Manoj Kanskar ,  Shuang Li ,  Jim Zhang ,  Mark DeFranza ,  David Martin Hemenway ,  Eric Martin ,  Jay Small

    IPC分类号： H01S5/40 ,  H01S5/022

    摘要： Apparatus include a first laser diode situated to emit a beam from an exit facet along an optical axis, the beam as emitted having perpendicular fast and slow axes perpendicular to the optical axis, a first fast axis collimator (FAC) optically coupled to the beam as emitted from the exit facet and configured to direct the beam along a redirected beam axis having a non-zero angle with respect to the optical axis of the first laser diode, a second laser diode situated to emit a beam from an exit facet of the second laser diode along an optical axis parallel to the optical axis of the first laser diode and with a slow axis in a common plane with the slow axis of the first laser diode, and a second fast axis collimator (FAC) optically coupled to the beam as emitted from the exit facet of the second laser diode and configured to direct the beam along a redirected beam axis having a non-zero angle with respect to the optical axis of the second laser diode.

    Fiber pump combiner
    5.
    发明授权
    Fiber pump combiner 有权

    公开(公告)号：US10404031B2

    公开(公告)日：2019-09-03

    申请号：US15835298

    申请日：2017-12-07

    申请人： nLIGHT, Inc.

    发明人： Manoj Kanskar

    IPC分类号： H01S3/094 ,  G02B6/04 ,  G02B6/28 ,  H01S3/0941 ,  G02B6/40

    摘要： An optical fiber combiner comprising a coupling device having an input surface area, and you Ain, and an output surface area, Aout, wherein the input surface area Ain is greater than the output surface area Aout, and a plurality of optical fibers each having an input surface and an output surface, wherein the output surfaces of the plurality of optical fibers are coupled to the coupling device, wherein the coupling device combines optical power emitted by the plurality of optical fibers.

    Tandem pumped fiber amplifier
    6.
    发明授权
    Tandem pumped fiber amplifier 有权

    公开(公告)号：US10211591B2

    公开(公告)日：2019-02-19

    申请号：US15782756

    申请日：2017-10-12

    申请人： NLIGHT, INC.

    发明人： Manoj Kanskar

    IPC分类号： H01S3/067 ,  G02B6/24 ,  H01S3/00 ,  H01S3/0941 ,  H01S3/23 ,  G02B6/02 ,  H01S3/094 ,  H01S3/16

    摘要： In an example, a tandem pumped fiber amplifier may include a seed laser, one or more diode pumps, and a plural core fiber including a first core and a second core, the second core surrounding the first core. The plural 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 plural core fiber, and the seed laser may be optically coupled to the first core.