Shuang Li

US Patent:

20220352694, Nov 3, 2022

Filed:

Sep 10, 2020

Appl. No.:

17/761466

Inventors:

- Camas WA, US
Shuang Li - Camas WA, US
Manoj Kanskar - Portland OR, US

Assignee:

NLIGHT. INC. - Camas WA

International Classification:

H01S 5/40
H01S 5/02251
H01S 5/14
G02B 6/42

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.

US Patent:

20210126435, Apr 29, 2021

Filed:

Nov 9, 2020

Appl. No.:

17/093111

Inventors:

- Vancouver WA, US
Manoj Kanskar - Portland OR, US
Shuang Li - Vancouver WA, US
Jim Zhang - Vancouver WA, US
Mark DeFranza - Vancouver WA, US
David Martin Hemenway - Beaverton OR, US
Eric Martin - Vancouver WA, US
Jay Small - Vancouver WA, US

Assignee:

nLIGHT, Inc. - Vancouver WA

International Classification:

H01S 5/40
H01S 5/02251

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.

US Patent:

20200371285, Nov 26, 2020

Filed:

May 22, 2020

Appl. No.:

16/881560

Inventors:

- Vancouver WA, US
Shuang LI - Vancouver WA, US
Eric MARTIN - Vancouver WA, US
Jay SMALL - Vancouver WA, US
Jiamin ZHANG - Vancouver WA, US

Assignee:

NLIGHT, INC. - Vancouver WA

International Classification:

G02B 6/02
C03B 37/012

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.

US Patent:

20190252863, Aug 15, 2019

Filed:

Feb 6, 2019

Appl. No.:

16/269387

Inventors:

Zhigang Chen - Portland OR, US
Manoj Kanskar - Portland OR, US
Shuang Li - Vancouver WA, US
Jim Zhang - Vancouver WA, US
Mark DeFranza - Vancouver WA, US
David Martin Hemenway - Beaverton OR, US
Eric Martin - Vancouver WA, US
Jay Small - Vancouver WA, US

Assignee:

nLIGHT, Inc. - Vancouver WA

International Classification:

H01S 5/40
H01S 5/022

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.

US Patent:

20140185644, Jul 3, 2014

Filed:

Dec 30, 2013

Appl. No.:

14/144408

Inventors:

- Vancouver WA, US
Ken Gross - Vancouver WA, US
Shuang Li - Vancouver WA, US

Assignee:

nLight Photonics Corporation - Vancouver WA

International Classification:

G02B 6/028
H01S 3/094

US Classification:

372 75, 385124

Abstract:

Optical fibers that provide stable output beam sizes have core refractive indices that decrease non-monotonically from a core center to a core/cladding interface. A maximum refractive index of the core is situated at a radius of between about and of the core radius so that a core center has a depressed refractive index. Such fibers are included in diode pumped solid state lasers to deliver pump laser power to a laser medium.