公开(公告)号：US10732357B2

公开(公告)日：2020-08-04

申请号：US14921203

申请日：2015-10-23

Applicant: nLIGHT, Inc.

Inventor： Kylan Hoener ,  David C. Dawson ,  Kevin A. Shea ,  R. Kirk Price

IPC: G02B6/38 ,  G02B6/14 ,  G02B6/32 ,  G02B6/24 ,  G02B6/42 ,  G02B6/28

Abstract: A fiber termination assembly includes an optical fiber inserted into an optical ferrule disposed in an optical passageway of a heat conductive housing, the optical passageway providing an optical path aligned with the openings of the housing, the optical ferrule including a central bore concentrically disposed about the optical path and configured to receive a portion of a proximal end of the optical fiber therein, the optical ferrule and optical fiber secured in relation to the heat conductive housing with epoxy at a distal end of the optical ferrule, wherein the optical ferrule is transparent at a predetermined wavelength of light such that for light coupled into an input surface of the proximal end of the optical fiber at least a portion of the light propagating as cladding modes is stripped out of the optical fiber and transported to and dissipated in the heat conductive housing.

公开(公告)号：US10564361B2

公开(公告)日：2020-02-18

申请号：US16353586

申请日：2019-03-14

Applicant: nLIGHT, Inc.

Inventor： David Martin Hemenway ,  David C. Dawson ,  Wolfram Urbanek

IPC: G02B6/28 ,  G02B6/32 ,  G02B27/09 ,  H01S5/40 ,  G02B19/00 ,  G02B6/42 ,  G02B27/12 ,  G02B27/30 ,  H01S5/00 ,  H01S5/022

Abstract: Beam compressors include separated surfaces having positive and negative optical powers. A surface spacing is selected so that a collimated beam input to the beam compressor is output as a collimated beam. In some examples, beam compressors are situated to compress a laser beam stack that includes beams associated with a plurality of laser diodes. Beam compression ratios are typically selected so that a compressed beam stack focused into an optical waveguide has a numerical aperture corresponding to the numerical aperture of the optical waveguide.

公开(公告)号：US10418774B2

公开(公告)日：2019-09-17

申请号：US16208111

申请日：2018-12-03

Applicant: nLIGHT, Inc.

Inventor： David Martin Hemenway ,  David C. Dawson ,  Wolfram Urbanek ,  Roger L. Farrow ,  Dahv A. V. Kliner

IPC: H01S3/094 ,  H01S3/10 ,  H01S3/0941 ,  H01S3/067 ,  G02B27/14 ,  H01S3/16 ,  H01S3/23 ,  H01S3/102 ,  G02B6/42 ,  H01S5/40 ,  G02B6/036 ,  H01S5/022 ,  H01S5/024 ,  H01S5/14

Abstract: A method of spectrally multiplexing diode pump modules to increase brightness includes generating one or more pump beams from respective diode lasers at a first wavelength in a diode laser package, generating one or more pump beams from respective diode lasers at a second wavelength different from the first wavelength in the diode laser package, wavelength combining at least one of the pump beams at the first wavelength with at least one of the pump beams at the second wavelength to form one or more combined pump beams, and receiving the combined pump beams in a pump fiber coupled to the diode laser package. Laser systems can include multi-wavelength pump modules and a gain fiber having a core actively doped so as to have an absorption spectrum corresponding to the multiple wavelength, the gain fiber situated to receive the pump light and to produce an output beam at an output wavelength.

公开(公告)号：US20190221990A1

公开(公告)日：2019-07-18

申请号：US16208111

申请日：2018-12-03

Applicant: nLIGHT, INC

Inventor： David Martin Hemenway ,  David C. Dawson ,  Wolfram Urbanek ,  Roger L. Farrow ,  Dahv A.V. Kliner

IPC: H01S3/094 ,  H01S3/102 ,  H01S5/40 ,  G02B6/036 ,  H01S3/10 ,  H01S3/0941 ,  H01S3/067 ,  G02B27/14 ,  H01S3/16 ,  H01S3/23 ,  H01S5/022 ,  H01S5/024 ,  H01S5/14

CPC classification number: H01S3/094096 ,  G02B6/03638 ,  G02B6/4296 ,  G02B27/141 ,  G02B27/146 ,  H01S3/067 ,  H01S3/06754 ,  H01S3/094003 ,  H01S3/094007 ,  H01S3/094053 ,  H01S3/0941 ,  H01S3/09415 ,  H01S3/10007 ,  H01S3/10023 ,  H01S3/10038 ,  H01S3/1022 ,  H01S3/1618 ,  H01S3/2308 ,  H01S5/02284 ,  H01S5/02288 ,  H01S5/02469 ,  H01S5/141 ,  H01S5/4012 ,  H01S5/4087 ,  H01S2301/04

Abstract: A method of spectrally multiplexing diode pump modules to increase brightness includes generating one or more pump beams from respective diode lasers at a first wavelength in a diode laser package, generating one or more pump beams from respective diode lasers at a second wavelength different from the first wavelength in the diode laser package, wavelength combining at least one of the pump beams at the first wavelength with at least one of the pump beams at the second wavelength to form one or more combined pump beams, and receiving the combined pump beams in a pump fiber coupled to the diode laser package. Laser systems can include multi-wavelength pump modules and a gain fiber having a core actively doped so as to have an absorption spectrum corresponding to the multiple wavelength, the gain fiber situated to receive the pump light and to produce an output beam at an output wavelength.

公开(公告)号：US20170271837A1

公开(公告)日：2017-09-21

申请号：US15462596

申请日：2017-03-17

Applicant: nLIGHT, Inc.

Inventor： David Martin Hemenway ,  David C. Dawson ,  Wolfram Urbanek ,  Roger L. Farrow ,  Dahv A.V. Kliner

IPC: H01S3/094 ,  G02B6/036 ,  H01S5/022 ,  H01S5/14 ,  G02B27/14 ,  H01S3/0941 ,  H01S3/16 ,  H01S3/067 ,  H01S3/23 ,  H01S5/40 ,  H01S5/024

CPC classification number: H01S3/094096 ,  G02B6/03638 ,  G02B6/4296 ,  G02B27/141 ,  G02B27/146 ,  H01S3/067 ,  H01S3/06754 ,  H01S3/094003 ,  H01S3/094007 ,  H01S3/094053 ,  H01S3/0941 ,  H01S3/09415 ,  H01S3/10007 ,  H01S3/10023 ,  H01S3/10038 ,  H01S3/1022 ,  H01S3/1618 ,  H01S3/2308 ,  H01S5/02284 ,  H01S5/02288 ,  H01S5/02469 ,  H01S5/141 ,  H01S5/4012 ,  H01S5/4087 ,  H01S2301/04

Abstract: A method of spectrally multiplexing diode pump modules to increase brightness includes generating one or more pump beams from respective diode lasers at a first wavelength in a diode laser package, generating one or more pump beams from respective diode lasers at a second wavelength different from the first wavelength in the diode laser package, wavelength combining at least one of the pump beams at the first wavelength with at least one of the pump beams at the second wavelength to form one or more combined pump beams, and receiving the combined pump beams in a pump fiber coupled to the diode laser package. Laser systems can include multi-wavelength pump modules and a gain fiber having a core actively doped so as to have an absorption spectrum corresponding to the multiple wavelength, the gain fiber situated to receive the pump light and to produce an output beam at an output wavelength.