公开(公告)号：US20200371285A1

公开(公告)日：2020-11-26

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

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：US20230359051A1

公开(公告)日：2023-11-09

申请号：US17777248

申请日：2020-11-19

Applicant: NLIGHT, INC

Inventor： Jay SMALL ,  Shuang LI ,  Dahv A.V. KLINER

IPC: G02B27/09 ,  G02B6/028 ,  G02B6/42 ,  C03B37/027

CPC classification number: G02B27/0994 ,  C03B37/02745 ,  G02B6/0286 ,  G02B6/4206 ,  C03B2203/26

Abstract: Angularly homogenizing gradient index optical fiber having a refractive index profile that is non-quadratic to a degree sufficient to enhance precession of light as it is propagated through the fiber. Deviation from the quadratic may be limited to avoid profoundly changing the radial boundary within the fiber. Beam asymmetry, for example, associated with small aperture sources launched into a fiber off axis, may be made more symmetric as the beam is propagated through the homogenizing gradient index optical fiber. A refractive index profile may be manufactured to avoid a pure quadratic profile, or a fiber having a refractive index profile that is quadratic in only some orientations about the fiber axis may be twisted during draw to induce a refractive index profile path that enhances propagation precession.

公开(公告)号：US20220344890A1

公开(公告)日：2022-10-27

申请号：US17761803

申请日：2020-09-16

Applicant: NLIGHT, INC.

Inventor： Shuang LI ,  Jiamin Zhang ,  Nanoj 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.