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公开(公告)号：US20230011712A1
公开(公告)日：2023-01-12
申请号：US17842097
申请日：2022-06-16
Applicant: NLIGHT, INC.
Inventor： Kenneth V. ALMONTE , Aaron Brown
Abstract: A magnetically-actuated laser beam control assembly may include a magnetically permeable cover arranged to sealingly couple to an optics housing to cover an opening of the optics housing, an interior sub-assembly, and an exterior sub-assembly. The interior sub-assembly may include includes a linkage having a first section and a second section; the first section of the linkage to receive an optical component; and a ferroelectric or ferromagnetic material on the second section of the linkage. The exterior sub-assembly may include an electromagnet energizable to impart a magnetic force to the ferroelectric or ferromagnetic material to move the optical component from one of a resting position and a different position to the other of the resting position and the different position to cause the optical component to selectively optically process a laser beam. Other embodiments may be disclosed and/or claimed.
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12.发明申请公开(公告)号：US20220368108A1
公开(公告)日：2022-11-17
申请号：US17761188
申请日：2020-09-15
Applicant: NLIGHT, INC.
Inventor： Zhigang Chen , Manoj Kanskar
Abstract: Some embodiments may include a laser diode having a strain-engineered cladding layer for optimized active region strain and improved laser diode performance. In one embodiment, the laser diode may include a semiconductor substrate having a material composition with a first lattice constant; and a plurality of epitaxy layers form on the semiconductor substrate, with plurality of epitaxy layers including a waveguide layer and cladding layers, wherein the waveguide layer includes an active region having a material composition associated with a target optical wavelength, wherein a second lattice constant of the material composition of the active region is different than the first lattice constant; wherein a material composition and/or thickness of an individual cladding layer of the cladding layers is/are arranged to impart a target stress field on the active region to optimize active region strain. Other embodiments may be disclosed and/or claimed.
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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.
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14.发明申请公开(公告)号：US20220303522A1
公开(公告)日：2022-09-22
申请号：US17653870
申请日：2022-03-07
Applicant: nLIGHT, Inc.
Inventor： Bodo Schmidt , Steve Herman
IPC: H04N13/254 , H04N13/239 , B60Q1/04
Abstract: Systems and methods for reducing or eliminating undesired effects of retro-reflections in imaging are disclosed. A system for reducing the undesired effects of retro-reflections may include an illuminator and an optical receiver. The illuminator is configured to emit an illumination signal for illuminating a scene. The optical receiver is configured to receive returned portions of the illumination signal scattered or reflected from the scene. Return signals from retroreflectors present in the scene may oversaturate or otherwise negatively affect sensors in the optical receiver. To limit return signals from retroreflectors that may be present in the scene, the illuminator and optical receiver are physically separated from each other by an offset distance that limits or prevents retro-reflections from the retroreflectors from being received by the optical receiver.
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公开(公告)号：US20220123519A1
公开(公告)日：2022-04-21
申请号：US17419000
申请日：2019-12-20
Applicant: NLIGHT, INC.
Inventor： Manoj KANSKAR
IPC: H01S5/02251 , H01S5/024 , H01S5/40
Abstract: A laser diode package, comprising a housing having a metal base portion, an integrated heat spreader formed within the base, the integrated heat spreader comprising a first phase-change material (PCM) and configured to dissipate heat via phase-change cooling. A heat source may be disposed on a top surface of the base, the heat source may be thermally coupled to the integrated heat spreader so as to dissipate heat away from the heat source via phase-change cooling.
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Patent Agency Ranking
公开(公告)号：US20220094134A1
公开(公告)日：2022-03-24
申请号：US17419510
申请日：2019-12-31
Applicant: nLIGHT, Inc.
Inventor： C. Geoffrey Fanning , Jay Small , Dahv A.V. Kliner , Chris A. Rivera
Abstract: Apparatus include a first optical fiber including a core situated to propagate a signal beam at a signal wavelength and an unwanted stimulated Raman scattering (SRS) beam at an SRS wavelength associated with the signal wavelength, and a fiber Bragg grating (FBG) situated in a core of a second optical fiber optically coupled to the core of the first optical fiber, the FBG having a selected grating reflectivity associated with the SRS wavelength and being situated to reflect the SRS beam back along the core of the second optical fiber and to reduce a damage associated with propagation of the SRS beam to power sensitive laser system components optically coupled to the second optical fiber. Methods are also disclosed.
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公开(公告)号：US20220085567A1
公开(公告)日：2022-03-17
申请号：US17418707
申请日：2019-12-19
Applicant: nLIGHT, Inc.
Inventor： Tyson L. Lowder , Dahv A.V. Kliner , C. Geoffrey Fanning
Abstract: Fiber laser devices, systems, and methods for reducing Raman spectrum in emissions from a resonant cavity. A fiber laser oscillator that is to generate an optical beam may include a Raman reflecting output coupler that strongly reflects a Raman component pumped within the resonant cavity, and partially reflects a signal component to sustain the oscillator and emit a signal that has a reduced Raman component. A Raman filtering output coupler may comprise a superstructure fiber grating, and such a grating may be chirped or otherwise designed to have a desired bandwidth.
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公开(公告)号：US20220069538A1
公开(公告)日：2022-03-03
申请号：US17417365
申请日：2019-12-19
Applicant: nLIGHT, Inc.
Inventor： Tyson L. Lowder , Dahv A.V. Kliner , C. Geoffrey Fanning
IPC: H01S3/067
Abstract: Optical fiber devices, systems, and methods for separating Raman spectrum from signal spectrum Raman spectrum may be suppressed as a result of a reduction in gain and/or through dissipation while the signal spectrum may Raman Components In be propagated in one or more guided modes of a fiber system. A fiber system may Length include a propagation mode coupler to couple a first guided mode into a second guided mode with an efficiency that varies as a function of wavelength of the propagated light. Mode coupling efficiency may be higher for Raman spectrum, and lower for signal spectrum so that Raman spectrum associated with a fundamental mode is preferentially coupled into a higher-order mode. A fiber system may include a mode filter operable to discriminate between first and second guided modes. Within the filter, guiding of the first mode may be superior to that of the second mode with Raman spectrum preferentially rejected.
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公开(公告)号：US11256076B2
公开(公告)日：2022-02-22
申请号：US16149712
申请日：2018-10-02
Applicant: nLIGHT, Inc.
Inventor： Scott R. Karlsen , Robert J. Martinsen , Keith W. Kennedy
Abstract: A laser system capable of producing a stable and accurate high-power output beam from one or more input beams of corresponding laser sources comprises one or more optical elements configured to receive the input beams wherein at least one of said one or more optical elements is made of high purity fused silica.
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公开(公告)号：US11239623B2
公开(公告)日：2022-02-01
申请号：US16820556
申请日：2020-03-16
Applicant: nLIGHT, Inc.
Inventor： Michael C. Nelson
IPC: H01S3/13 , H01S3/00 , H01S3/102 , H01S3/091 , H01S3/10 , H01S3/131 , H01S3/04 , H01S3/0941 , H01S5/068
Abstract: A burst logging system logs and transmits to a local or remote computing system event data related to errors in and or potential failures of laser system components. The system further provides for capturing data at different rates from different sensors, synchronization of data capture associated with system events and the possibility for aggregation of data from multiple systems, which can in turn be leveraged to predict and or remediate future system events.
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