公开(公告)号：US10315274B2

公开(公告)日：2019-06-11

申请号：US15040357

申请日：2016-02-10

Applicant: nLIGHT Inc.

Inventor： Xiaojun Li ,  R. Kirk Price ,  Jason N. Farmer ,  Ethan A. McGrath

IPC: B23K26/18 ,  B41J2/44 ,  B41M5/26 ,  B23K26/356 ,  B23K26/359 ,  B23K26/0622 ,  B23K26/082 ,  B41J2/47

Abstract: A laser marking method and system, and laser marked object are disclosed. The method includes directing a pulsed laser beam towards an object such that an interface between an oxidized layer and non-oxidized substrate is in a mark zone of the pulsed laser beam, and scanning the pulsed laser beam across the object in a predetermined pattern to create a mark having an L value of less than 40 and a surface roughness that is substantially unchanged compared to adjacent unmarked areas. The system includes a fiber laser generating amplified pulses that are directed towards a galvo-scanner and focusing optic, while the object includes an oxidized surface layer, an underlying non-oxidized substrate, and a mark having an L value of less than 40 with substantially unchanged roughness features.

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：US10466494B2

公开(公告)日：2019-11-05

申请号：US15384059

申请日：2016-12-19

Applicant: nLIGHT, Inc.

Inventor： Scott A. Lerner ,  R. Kirk Price ,  Scott R. Karlsen

IPC: G02B27/09

Abstract: An apparatus includes beam shearing optics situated to receive a collimated beam and to shear the collimated beam along a first direction so as to form a plurality of adjacent collimated beam portions, and homogenization optics situated to receive and homogenize the adjacent collimated beam portions along at least the first direction so as to produce a homogenized output beam. A method includes shearing a collimated beam having a beam parameter product (bpp) along an axis so as to form a plurality of sheared collimated beam portions, and arranging the sheared collimated beam portions adjacent to each other so that a line beam having a length and thickness that is formed with the light from the sheared collimated beam portions has a lower bpp associated with the line beam thickness than the bpp of the collimated beam along the axis.

公开(公告)号：US20170176758A1

公开(公告)日：2017-06-22

申请号：US15384059

申请日：2016-12-19

Applicant: nLIGHT, Inc.

Inventor： Scott A. Lerner ,  R. Kirk Price ,  Scott R. Karlsen

IPC: G02B27/09 ,  G02B27/30

Abstract: An apparatus includes beam shearing optics situated to receive a collimated beam and to shear the collimated beam along a first direction so as to form a plurality of adjacent collimated beam portions, and homogenization optics situated to receive and homogenize the adjacent collimated beam portions along at least the first direction so as to produce a homogenized output beam. A method includes shearing a collimated beam having a beam parameter product (bpp) along an axis so as to form a plurality of sheared collimated beam portions, and arranging the sheared collimated beam portions adjacent to each other so that a line beam having a length and thickness that is formed with the light from the sheared collimated beam portions has a lower bpp associated with the line beam thickness than the bpp of the collimated beam along the axis.