公开(公告)号：US20240348002A1

公开(公告)日：2024-10-17

申请号：US18749336

申请日：2024-06-20

申请人： Candela Corporation

发明人： Xiaoming Shang ,  Kevin Schomacker ,  Yimin Zang ,  Hugh Xiong ,  Herb Otterson

IPC分类号： H01S3/1123 ,  A61N5/06 ,  A61N5/067 ,  H01S3/00 ,  H01S3/0941 ,  H01S3/109 ,  H01S3/16

CPC分类号： H01S3/1123 ,  A61N5/0616 ,  A61N5/067 ,  H01S3/0071 ,  H01S3/09415 ,  H01S3/109 ,  A61N2005/0644 ,  A61N2005/0651 ,  A61N2005/0659 ,  A61N2005/0663 ,  H01S3/1611 ,  H01S3/1643

摘要： A fractional handpiece and systems thereof for skin treatment including a handpiece body including a passively Q-switched laser assembly within the handpiece body operatively connected to a pump laser source to receive a pump laser beam having a first wavelength and a beam scanning system operable to scan a solid beam emitted by the passively Q-switched laser assembly and form a line of micro-beams across a segment of skin. The passively Q-switched laser assembly generates a high-power sub-nanosecond pulsed laser beam having a second wavelength. The pump laser source is a diode laser which emits the first wavelength at about 500 nm to about 1000 nm.

公开(公告)号：US12095226B2

公开(公告)日：2024-09-17

申请号：US18471350

申请日：2023-09-21

申请人： TriEye Ltd.

发明人： Yoni Prosper Shalibo ,  Ariel Danan ,  Omer Kapach

IPC分类号： H01S5/06 ,  B32B18/00 ,  C04B35/495 ,  G01S7/484 ,  H01S3/06 ,  H01S3/11 ,  H01S3/113 ,  H01S3/16 ,  H01S5/00 ,  H01S3/0941 ,  H01S3/131

CPC分类号： H01S5/0615 ,  B32B18/00 ,  C04B35/495 ,  G01S7/484 ,  H01S3/113 ,  H01S3/1685 ,  H01S5/0071 ,  C04B2235/3203 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/9653 ,  C04B2237/343 ,  C04B2237/36 ,  H01S3/061 ,  H01S3/0627 ,  H01S3/09415 ,  H01S3/1312 ,  H01S3/1643

摘要： Systems and methods for imaging in the short wave infrared (SWIR), photodetectors with low dark current and associated circuits for reducing dark currents and methods for generating image information based on data of a photodetector array. A SWIR imaging system may include a pulsed illumination source operative to emit radiation pulses in the SWIR band towards a target resulting in reflected radiation from the target; (b) an imaging receiver including a plurality of Ge PDs operative to detect the reflected SWIR radiation and a controller, operative to control activation of the receiver for an integration time during which the accumulated dark current noise does not exceed the time independent readout noise.

公开(公告)号：US20240243550A1

公开(公告)日：2024-07-18

申请号：US18559406

申请日：2022-02-15

申请人： SONY GROUP CORPORATION

发明人： KENJI TANAKA ,  MASANAO KAMATA

IPC分类号： H01S5/183 ,  H01S3/0941 ,  H01S3/10 ,  H01S3/113 ,  H01S3/16 ,  H01S5/343

CPC分类号： H01S5/18305 ,  H01S3/09415 ,  H01S3/10053 ,  H01S3/10061 ,  H01S3/113 ,  H01S3/1618 ,  H01S3/1643 ,  H01S5/34313

摘要： Provided is a laser element capable of integrating a plurality of optical elements and inhibiting a standing wave of excitation light or oscillation light. A laser element includes: a laminated semiconductor layer including a first reflection layer and an active layer that performs surface emission at a first wavelength; a laser medium including a second reflection layer on a first surface and a third reflection layer on a second surface; a fourth reflection layer disposed on the rear side of the optical axis with respect to the second surface; a first resonator that causes light of the first wavelength to resonate between the first reflection layer and the third reflection layer; a second resonator that causes light of a second wavelength to resonate between the second reflection layer and the fourth reflection layer; a first polarization conversion element provided between the first reflection layer and the laser medium; a second polarization conversion element provided between the second reflection layer and the laser medium, and at least one of first or second polarization control element provided between the first reflection layer and the fourth reflection layer. The optical axis of the laminated semiconductor layer, an optical axis of the laser medium, and optical axes of the first and second polarization conversion elements and the first or second polarization control element are coaxially arranged.

公开(公告)号：US20240230985A1

公开(公告)日：2024-07-11

申请号：US18613826

申请日：2024-03-22

申请人： NKT Photonics A/S

发明人： Carsten L. Thomsen ,  Thomas T. Alkeskjold ,  Erik B. Thomsen

IPC分类号： G02B6/02 ,  G01B9/02001 ,  G01B9/02091 ,  G02B6/036 ,  G02F1/35 ,  G02F1/365 ,  H01S3/00 ,  H01S3/067 ,  H01S3/094 ,  H01S3/0941 ,  H01S3/113 ,  H01S3/131 ,  H01S3/16

CPC分类号： G02B6/02376 ,  G01B9/02007 ,  G01B9/02091 ,  G02B6/02214 ,  G02B6/02333 ,  G02B6/02338 ,  G02B6/02347 ,  G02B6/03633 ,  G02F1/353 ,  G02F1/365 ,  H01S3/0092 ,  H01S3/06725 ,  H01S3/06741 ,  H01S3/06745 ,  H01S3/094076 ,  H01S3/09415 ,  G02F1/3528 ,  G02F2202/32 ,  H01S3/113 ,  H01S3/1312 ,  H01S3/1611

摘要： A microstructured optical fiber for generating supercontinuum light. The optical fiber includes a core and a cladding region surrounding the core. The optical fiber includes a first fiber length section, a second fiber length section as well as an intermediate fiber length section between said first and second fiber length sections. The first fiber length section has a core with a first characteristic core diameter larger than about 7 μm. The second fiber length section has a core with a second characteristic core diameter, smaller than said first characteristic core diameter. The intermediate length section of the optical fiber includes a core which is tapered from said first characteristic core diameter to the second characteristic core diameter over a tapered length. Also, a supercontinuum light source including an optical fiber and a pump light source.

公开(公告)号：US12027814B2

公开(公告)日：2024-07-02

申请号：US17823569

申请日：2022-08-31

申请人： National Institutes for Quantum Science and Technology

发明人： Yutaka Akahane ,  Makoto Aoyama ,  Kanade Ogawa ,  Koichi Yamakawa

IPC分类号： H01S3/094 ,  H01S3/04 ,  H01S3/042 ,  H01S3/06 ,  H01S3/08045 ,  H01S3/0805 ,  H01S3/0941 ,  H01S3/113 ,  H01S3/16 ,  H01S5/00 ,  H01S3/00

CPC分类号： H01S5/005 ,  H01S3/0401 ,  H01S3/0405 ,  H01S3/0627 ,  H01S3/094076 ,  H01S3/09415 ,  H01S3/113 ,  H01S3/1618 ,  H01S3/1643 ,  H01S3/0057 ,  H01S3/0092 ,  H01S3/042 ,  H01S3/08045 ,  H01S3/0805

摘要： Provided is a laser device in which: a laser medium doped with ytterbium emits light upon absorption of excitation light; the light emitted by the laser medium is amplified to obtain output light; and the output light is outputted in the form of a plurality of pulses. In the laser device, a spatial filter is disposed in the optical path of the light emitted by the laser medium or is disposed in the optical path of the output light outputted from an optical resonator, the spatial filter being configured to filter out a portion of the light or of the output light around the optical axis.

公开(公告)号：US12027812B2

公开(公告)日：2024-07-02

申请号：US17098394

申请日：2020-11-15

申请人： FYZIKALNI USTAV AV CR, V.V.I

发明人： Körner Jörg ,  Antonio Lucianetti ,  Tomas Mocek ,  Joachim Hein

IPC分类号： H01S3/08 ,  H01S3/0804 ,  H01S3/0941 ,  H01S3/102 ,  H01S3/11 ,  H01S3/121 ,  H01S3/094 ,  H01S3/115

CPC分类号： H01S3/08081 ,  H01S3/0804 ,  H01S3/09415 ,  H01S3/1022 ,  H01S3/1103 ,  H01S3/121 ,  H01S3/094038 ,  H01S3/115 ,  H01S2301/206

摘要： The present invention relates to a laser system and a method of generating a defined spatial mode-shaped laser beam using an unstable laser resonator layout. The laser system for mode shaping of a laser beam within an unstable optical resonator layout comprising an active medium, characterized in that, the active media comprises a pumped area, wherein the gain distribution is generated by an optical pump beam's spatially intensity profile.
In a preferred embodiment, the system may further comprise an end-pumped layout to deliver the spatially shaped optical pump beam to the active medium; and/or an active element and/or a passive element for modifying the resonator losses; and/or means of output coupling of a laser beam from said unstable resonator layout.
The system according to the present invention is suitable to deliver a top-hat beam profile.

公开(公告)号：US20240162676A1

公开(公告)日：2024-05-16

申请号：US18510073

申请日：2023-11-15

申请人： nLIGHT, Inc.

发明人： Tyson L. LOWDER ,  Robert Joseph FOLEY

IPC分类号： H01S3/0941 ,  H01S3/094 ,  H01S3/131

CPC分类号： H01S3/09415 ,  H01S3/094076 ,  H01S3/1315

摘要： A laser system may include a gain medium; and pump modules to energize the gain medium or a single pump emitter to energize the gain medium; and circuitry to: configure a pump emitter of the pump modules to activate at a first intensity at a first time, or configure a pump emitter of the single pump module to activate at a reduced intensity at the first time; and the circuitry to: configure one or more next pumps emitters of the pump modules to activate at one or more second intensities, respectively, and at one or more second times, respectively, or configure the single pump emitter to activate at one or more second intensities at the one or more second times, respectively, wherein the one or more second times are delayed by one or more delay amounts, respectively, relative to the first time.

公开(公告)号：US20240136783A1

公开(公告)日：2024-04-25

申请号：US18568013

申请日：2022-06-07

申请人： IPG PHOTONICS CORPORATION

发明人： Alexey Avdokhin ,  Nikolai Platonov ,  Pankaj Kadwani ,  Jimyung Kim

IPC分类号： H01S3/10 ,  H01S3/00 ,  H01S3/04 ,  H01S3/23

CPC分类号： H01S3/1001 ,  H01S3/0092 ,  H01S3/0405 ,  H01S3/10069 ,  H01S3/2316 ,  H01S3/09415

摘要： A laser system is configured with at least one light amplifying device sequentially outputting a light signal at first and at least one additional operating wavelengths over respective time intervals. Each time interval is shorter than the predetermined lifespan of the light amplifying device. The total useful life of the light amplifying device, operating at a plurality of wavelengths, is 3-10 times longer than the predetermined lifespan.

公开(公告)号：US11955766B2

公开(公告)日：2024-04-09

申请号：US16961510

申请日：2019-01-10

申请人： AMPLITUDE SYSTEMES

发明人： Clemens Honninger ,  Eric Audouard

IPC分类号： H01S3/00 ,  H01S3/08 ,  H01S3/081 ,  H01S3/0941 ,  H01S3/1118 ,  H01S3/23

CPC分类号： H01S3/1118 ,  H01S3/0057 ,  H01S3/0085 ,  H01S3/08054 ,  H01S3/0816 ,  H01S3/09415 ,  H01S3/2316

摘要： Disclosed is a system and a method for generating high-power laser pulses with very high repetition rate. The laser system includes an oscillator capable of generating a source laser beam including a series of sources pulses with femtosecond or picosecond duration at a first repetition frequency no lower than 800 megahertz and an optical amplifier system suitable for receiving and amplifying the series of source pulses at a second repetition frequency that is equal to or a multiple of the first repetition frequency, the multiple being a non-negative integer greater than or equal to two, so as to generate a series of laser pulses with very high repetition frequency.

公开(公告)号：US11811194B2

公开(公告)日：2023-11-07

申请号：US17202501

申请日：2021-03-16

申请人： TriEye Ltd.

发明人： Yoni Prosper Shalibo ,  Ariel Danan ,  Omer Kapach

IPC分类号： H01S5/06 ,  H01S5/00 ,  H01S3/11 ,  H01S3/06 ,  H01S3/16 ,  B32B18/00 ,  C04B35/495 ,  G01S7/484 ,  H01S3/113 ,  H01S3/0941 ,  H01S3/131

CPC分类号： H01S5/0615 ,  B32B18/00 ,  C04B35/495 ,  G01S7/484 ,  H01S3/113 ,  H01S3/1685 ,  H01S5/0071 ,  C04B2235/3203 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/9653 ,  C04B2237/343 ,  C04B2237/36 ,  H01S3/061 ,  H01S3/0627 ,  H01S3/09415 ,  H01S3/1312 ,  H01S3/1643

摘要： Systems and methods for imaging in the short wave infrared (SWIR), photodetectors with low dark current and associated circuits for reducing dark currents and methods for generating image information based on data of a photodetector array. A SWIR imaging system may include a pulsed illumination source operative to emit radiation pulses in the SWIR band towards a target resulting in reflected radiation from the target; (b) an imaging receiver including a plurality of Ge PDs operative to detect the reflected SWIR radiation and a controller, operative to control activation of the receiver for an integration time during which the accumulated dark current noise does not exceed the time independent readout noise.