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公开(公告)号：US11831121B2
公开(公告)日：2023-11-28
申请号：US17788677
申请日：2021-01-28
Applicant: NLIGHT, INC.
Inventor： Juan Carlos Lugo , Teemu Kokki , Roger Farrow , Dahv A. V. Kliner
CPC classification number: H01S3/0064 , H01S3/06704
Abstract: Some embodiments may include a fiber laser including two or more input fibers and an output fiber to deliver a beam to a workpiece, the fiber laser comprising. The fiber laser may include a combiner having ends and a length, wherein the combiner is arranged to release, from its length, a portion of back-reflected light received from the output fiber at an output end of the ends from the combiner, the combiner including: a capillary tube to enclose part of the two or more input fibers at an input end of the ends of the combiner, the capillary tube having ends and a length located between the ends of the capillary tube; and a cladding light stripper (CLS) defined by part of the length of the capillary tube, wherein the CLS provides the release of the portion of the back-reflected light. Other embodiments may be disclosed and/or claimed.
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公开(公告)号：US20230258869A1
公开(公告)日：2023-08-17
申请号：US18016067
申请日：2021-07-14
Applicant: nLIGHT, INC.
Inventor： Juan Carlos Lugo
CPC classification number: G02B6/2558 , G02B6/2808 , G02B6/2856 , H01S3/06704 , H01S3/06745
Abstract: A capillary combiner housing for an optical fiber combiner has an inner combiner casing supporting optical fibers. The capillary combiner housing includes a non-metallic body defining a lumen between an input side and an output side, the lumen sized to receive the inner combiner casing, the non-metallic body having a coefficient of thermal expansion substantially matching that of the inner combiner casing. Also included is a first aperture in the input side, the first aperture having a first inside diameter sized to receive multiple input optical fibers, and a second aperture in the output side, the second aperture having a second inside diameter sized to receive an output fiber.
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