公开(公告)号：US11982835B2

公开(公告)日：2024-05-14

申请号：US16881560

申请日：2020-05-22

Applicant: NLIGHT, INC.

Inventor： Manoj Kanskar ,  Shuang Li ,  Eric Martin ,  Jay Small ,  Jiamin Zhang

IPC: G02B6/02 ,  C03B37/012

CPC classification number: G02B6/02395 ,  C03B37/01211 ,  C03B37/01225

Abstract: An apparatus for scattering light may include: an optical fiber having a first length; and a sleeve, having a second length shorter than the first length, around the optical fiber. The optical fiber may include: a core; and cladding around the core. The sleeve may include fiber-optic material. The fiber-optic material may be substantially polymer-free. An outer surface of the sleeve may be roughened to scatter the light out of the sleeve through the roughened surface. A method of forming an apparatus for scattering light may include: providing a sleeve having a first length, the sleeve having inner and outer surfaces; providing an optical fiber having a second length longer than the first length; passing the sleeve around the optical fiber or threading the optical fiber through the sleeve; and roughening at least a portion of the outer surface of the sleeve.

公开(公告)号：US11979002B2

公开(公告)日：2024-05-07

申请号：US17093111

申请日：2020-11-09

Applicant: nLIGHT, Inc.

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

IPC: H01S5/40 ,  G02B6/42 ,  H01S5/02251

CPC classification number: H01S5/4075 ,  G02B6/4296 ,  H01S5/02251

Abstract: 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.

公开(公告)号：US11641089B2

公开(公告)日：2023-05-02

申请号：US17761803

申请日：2020-09-16

Applicant: NLIGHT, INC.

Inventor： Shuang Li ,  Jiamin Zhang ,  Manoj Kanskar ,  Chendong Bai

IPC: H01S3/094 ,  H01S3/0941

Abstract: Some embodiments may include a packaged laser diode assembly, comprising: a length of optical fiber having a core and a polymer buffer in direct contact with the core, the length of optical fiber having a first section and a second section, the first section of the length of optical fiber including a tip of an input end of the optical fiber, wherein the polymer buffer covers only the second section of the first and second sections; one or more laser diodes to generate laser light; means for directing a beam derived from the laser light into the input end of the length of optical fiber; a light stripper attached to the core in the first section of the length of optical fiber. Other embodiments may be disclosed and/or claimed.

公开(公告)号：US10833482B2

公开(公告)日：2020-11-10

申请号：US16269387

申请日：2019-02-06

Applicant: nLIGHT, Inc.

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

IPC: H01S5/40 ,  H01S5/022

Abstract: 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.

公开(公告)号：US20220352694A1

公开(公告)日：2022-11-03

申请号：US17761466

申请日：2020-09-10

Applicant: NLIGHT. INC.

Inventor： Jiamin ZHANG ,  Shuang Li ,  Manoj Kanskar

IPC: H01S5/40 ,  H01S5/02251 ,  H01S5/14 ,  G02B6/42

Abstract: Some embodiments may include a packaged laser diode assembly, comprising: a length of optical fiber having a core and a cladding layer, the length of optical fiber having a first section and a second section, the first section of the length of optical fiber including a tip of an input end of the optical fiber; one or more laser diodes to generate laser light; one or more optical components to direct a beam derived from the laser light into the input end of the length of optical fiber; a clad light stripper on the second section of the length of optical fiber; wherein, in the first section of the length of optical fiber, the cladding layer includes: a light scattering feature at the tip of the input end of the optical fiber and/or a void along a length of the optical fiber.

公开(公告)号：US20210126435A1

公开(公告)日：2021-04-29

申请号：US17093111

申请日：2020-11-09

Applicant: nLIGHT, Inc.

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

IPC: H01S5/40 ,  H01S5/02251

Abstract: 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.