公开(公告)号：US12117567B2

公开(公告)日：2024-10-15

申请号：US18295380

申请日：2023-04-04

申请人： AQRONOS, INC.

发明人： Shu-Wei Huang ,  Peizhe Li

IPC分类号： G01S17/34 ,  G01S7/481 ,  G01S7/4911 ,  G02B26/10 ,  G02B26/12 ,  G02B27/28 ,  H01S3/067 ,  H01S3/094 ,  H01S3/0941 ,  H01S3/101 ,  H01S3/1106 ,  G01S17/89

CPC分类号： G01S7/4911 ,  G01S7/4814 ,  G01S7/4817 ,  G01S17/34 ,  G02B26/101 ,  G02B26/12 ,  G02B27/283 ,  H01S3/06791 ,  H01S3/094076 ,  H01S3/0941 ,  H01S3/101 ,  H01S3/1106 ,  G01S17/89

摘要： A dual-comb measuring system is provided. The dual comb measuring system may include a bi-directional mode-locked femtosecond laser, a high-speed rotation stage, and a fiber coupler. The high-speed rotation stage may be coupled to a pump diode.

公开(公告)号：US20240339806A1

公开(公告)日：2024-10-10

申请号：US18579917

申请日：2022-03-16

申请人： HAMAMATSU PHOTONICS K.K.

发明人： Masaru SHIMOMAKI ,  Shin KATO ,  Yasutaka SUZUKI

IPC分类号： H01S3/13 ,  G02F1/365 ,  H01S3/00 ,  H01S3/067 ,  H01S3/094 ,  H01S3/0941 ,  H01S3/16

CPC分类号： H01S3/13013 ,  G02F1/365 ,  H01S3/0057 ,  H01S3/0092 ,  H01S3/06708 ,  H01S3/094003 ,  H01S3/094042 ,  H01S3/094053 ,  H01S3/094076 ,  H01S3/09415 ,  H01S3/1608

摘要： A light source device includes: a fiber laser including an excitation light source and configured to output pulsed light generated according to excitation light from the excitation light source; a fiber amplifier configured to receive the pulsed light output from the fiber laser, amplify the pulsed light, and output the amplified pulsed light, a wavelength shift fiber configured to receive the pulsed light output from the fiber amplifier, shift a wavelength of the pulsed light, and output the pulsed light; an output fiber configured to receive the pulsed light output from the wavelength shift fiber, and output the pulsed light to an outside; a light detection element configured to detect, in the output fiber, the pulsed light having passed through at least the wavelength shift fiber; and a control unit configured to control a drive current of the excitation light source.

公开(公告)号：US20240322513A1

公开(公告)日：2024-09-26

申请号：US18735718

申请日：2024-06-06

申请人： WUHAN RAYCUS FIBER LASER TECHNOLOGIES CO., LTD.

发明人： Ouyang REN ,  Feng CHANG ,  Weiwen SHUAI ,  Peng XU ,  Dapeng YAN

IPC分类号： H01S3/00 ,  H01S3/0941 ,  H01S5/042 ,  H01S5/062

CPC分类号： H01S3/0057 ,  H01S3/0941 ,  H01S5/0428 ,  H01S5/06216

摘要： Disclosed are a narrow pulse width laser, a method for emitting narrow pulse width laser, a device, and a storage medium. The narrow pulse width laser includes: a pulse signal controller and a pulse laser emitter. An output end of the pulse signal controller is connected to an input end of the pulse laser emitter. The pulse signal controller is configured to obtain a first pulse signal and a second pulse signal, the first pulse signal is identical to the second pulse signal, the first pulse signal is controlled to delay for obtaining a delay signal, there is a target phase difference between the delay signal and the second pulse signal, the delay signal is superimposed on the second pulse signal to obtain a target pulse signal.

公开(公告)号：US12088057B2

公开(公告)日：2024-09-10

申请号：US17528315

申请日：2021-11-17

申请人： Chongqing Institute of East China Normal University ,  ROI Optoelectronics Technology CO, LTD. ,  East China Normal University

发明人： Heping Zeng ,  Xiao Wang ,  Shuang Li ,  Mengyun Hu

IPC分类号： H01S3/13 ,  H01S3/00 ,  H01S3/0941 ,  H01S5/024 ,  H01S5/068 ,  H01S5/0683

CPC分类号： H01S3/1305 ,  H01S3/0014 ,  H01S3/09415 ,  H01S3/13013 ,  H01S3/13017 ,  H01S5/02415 ,  H01S5/02446 ,  H01S5/06804 ,  H01S5/06808 ,  H01S5/0683

摘要： A driving and stabilization system for a pump laser, and a pump laser system. The driving and stabilization system includes a constant current stabilization device, a constant temperature stabilization device, a power detection device, an environment detection device, and a control device. The constant current stabilization device includes a voltage comparison circuit, a constant current driving circuit, and a switch protection circuit. The constant temperature stabilization device includes an internal constant temperature stabilization circuit and an external constant temperature stabilization circuit.

公开(公告)号：US12057673B2

公开(公告)日：2024-08-06

申请号：US17892906

申请日：2022-08-22

申请人： Lightel Technologies, Inc.

发明人： Chungho Hsia ,  Pai-Sheng Shen

IPC分类号： H01S3/067 ,  G02B6/28 ,  H01S3/094 ,  H01S3/0941 ,  H01S3/16 ,  H01S3/23

CPC分类号： H01S3/06733 ,  G02B6/2835 ,  H01S3/06716 ,  H01S3/06737 ,  H01S3/0675 ,  H01S3/094019 ,  H01S3/094053 ,  H01S3/0941 ,  H01S3/1618 ,  H01S3/2308

摘要： An all-fiber laser oscillator comprises a laser cavity, an amplification fiber, a plurality of diode lasers, and at least one side-pump signal-and-pump combiner (combiner). The combiner comprises a double-clad fiber (DCF) and four or more multimode fibers (MMFs). DCF comprises a first taper portion, whereas each of MMFs comprises a second taper portion fused around DCF. MMFs are configured to carry a portion of combined optical energy (COE) and to couple to DCF. The first taper portion can partially compensate a beam divergence created by the second taper portion, thereby increasing a coupling efficiency of COE coupled from MMFs to DCF with improved thermal performance. In a coupling portion, a refractive index difference between MMFs and DCF is configured to form a backward coupling barrier to suppress an optical energy in DCF from coupling into MMFs, thereby protecting the plurality of diode lasers from damage.

公开(公告)号：US20240258767A1

公开(公告)日：2024-08-01

申请号：US18559511

申请日：2021-05-26

申请人： SONY GROUP CORPORATION

发明人： GEN YONEZAWA ,  TOSHIYA TAKAGISHI ,  MISAKI SHIMIZU

IPC分类号： H01S5/024 ,  H01S3/0941 ,  H01S3/10 ,  H01S3/113 ,  H01S3/16 ,  H01S5/02345 ,  H01S5/183 ,  H01S5/343

CPC分类号： H01S5/02484 ,  H01S3/09415 ,  H01S3/10061 ,  H01S3/113 ,  H01S3/1618 ,  H01S3/1643 ,  H01S5/02345 ,  H01S5/02407 ,  H01S5/18305 ,  H01S5/34313

摘要： To prevent a decrease in oscillation efficiency of laser light and a decrease in conversion efficiency of an optical wavelength due to thermal interference. A laser element includes: a laminated semiconductor layer including a first reflection layer with respect to a first wavelength and an active layer that performs surface emission at the first wavelength; a laser medium disposed on a rear side of an optical axis of the laminated semiconductor layer and including a second reflection layer with respect to a second wavelength on a first surface facing the laminated semiconductor layer and a third reflection layer with respect to the first wavelength on a second surface on a side opposite to the first surface; a fourth reflection layer with respect to the second wavelength disposed on the second surface or disposed on a 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 the second wavelength to resonate between the second reflection layer and the fourth reflection layer; and a heat exhaust unit that is disposed between the laminated semiconductor layer and the laser medium and exhausts heat generated in at least one of the laminated semiconductor layer or the laser medium.

公开(公告)号：US12051882B2

公开(公告)日：2024-07-30

申请号：US17760725

申请日：2020-09-18

申请人： OFS Fitel, LLC

发明人： Daryl Inniss ,  Vitaly Mikhailov

IPC分类号： H04B10/29 ,  H01S3/067 ,  H01S3/094 ,  H01S3/0941 ,  H01S3/23 ,  H04B10/291 ,  H04B10/294 ,  H01S3/091

CPC分类号： H01S3/06762 ,  H01S3/06737 ,  H01S3/094007 ,  H01S3/094049 ,  H01S3/094061 ,  H01S3/09415 ,  H01S3/2383 ,  H04B10/2912 ,  H04B10/294 ,  H01S3/0912

摘要： A system (e.g., an optical amplifier) comprising gain fibers (e.g., Bismuth-doped optical fiber) for amplifying optical signals. The optical signals have an operating center wavelength (λ0) that is centered between approximately 1260 nanometers (˜1260 nm) and ˜1360 nm (which is in the O-Band). The gain fibers are optically coupled to pump sources, with the number of pump sources being less than or equal to the number of gain fibers. The pump sources are (optionally) shared among the gain fibers, thereby providing more efficient use of resources.

公开(公告)号：US20240235166A9

公开(公告)日：2024-07-11

申请号：US18310205

申请日：2023-05-01

申请人： Nuburu, Inc.

发明人： Mark Zediker ,  Jean Philippe Feve ,  Matthew Silva Sa ,  Michael Jansen

IPC分类号： H01S5/40 ,  G02B26/00 ,  H01S3/094 ,  H01S3/0941 ,  H01S5/02251 ,  H01S5/02253 ,  H01S5/023 ,  H01S5/02326 ,  H01S5/0233 ,  H01S5/024 ,  H01S5/028 ,  H01S5/30

CPC分类号： H01S5/4012 ,  G02B26/00 ,  H01S3/094046 ,  H01S3/094053 ,  H01S3/09415 ,  H01S5/02251 ,  H01S5/02253 ,  H01S5/023 ,  H01S5/02326 ,  H01S5/0233 ,  H01S5/02469 ,  H01S5/028 ,  H01S5/3013 ,  H01S5/4062 ,  H01S5/0071

摘要： The invention may be embodied in other forms than those specifically disclosed herein without departing from itMulti-kW-class blue (400-495 nm) fiber-delivered lasers and module configurations. In embodiments, the lasers propagate laser beams having beam parameter products of

公开(公告)号：US20240198451A1

公开(公告)日：2024-06-20

申请号：US18068846

申请日：2022-12-20

申请人： TURNING POINT LASERS CORPORATION

发明人： CHI LUEN WANG ,  HUNG SHENG LEE ,  YI SHIN SU ,  SHIH WEI LIN ,  SZUTSUN SIMON OU

IPC分类号： B23K26/06 ,  G02B6/04 ,  G02B6/26 ,  H01S3/094 ,  H01S3/0941 ,  H01S5/02251 ,  H01S5/40

CPC分类号： B23K26/0617 ,  G02B6/04 ,  G02B6/262 ,  H01S3/094003 ,  H01S3/09415 ,  H01S5/02251 ,  H01S5/4012 ,  H01S5/4025

摘要： A fiber output hybrid laser system, which having at least a blue ray laser model, emitting a blue ray laser beam; an infrared optic fiber laser module, emitting an infrared laser beam; a fiber bundle combining the above mentioned two laser beams, an output optical assembly collimating the laser beams, and generating focal points of two wavelengths; wherein the blue ray laser beam and the infrared laser beam which are coaxial and coincident to emit light, and the BPP of the blue ray laser beam and the infrared laser beam are both less than 10 mm*mrad; the power of the blue ray laser beam is between 20˜100 W, the power of the infrared laser beam is between 500˜5000 W, so as to obtain the best welding and cladding effects.

公开(公告)号：US11996671B2

公开(公告)日：2024-05-28

申请号：US17301050

申请日：2021-03-23

申请人： Université de Moncton

发明人： Jean-François Bisson

IPC分类号： H01S3/08 ,  H01S3/08031 ,  H01S3/0941 ,  H01S3/16

CPC分类号： H01S3/08059 ,  H01S3/08031 ,  H01S3/08054 ,  H01S3/09415 ,  H01S3/1618 ,  H01S3/1643

摘要： A resonant cavity and a method for manufacturing the same are provided. The resonant cavity includes a first reflective surface and a second reflective surface, each of the first and second reflective surfaces providing a phase shift of a reflected electric field component of light waves oscillating along a first principal axis that differs by about π relative to a phase shift of a reflected electric field component of light waves oscillating along a second principal axis that is normal to the first principal axis. At least one of the first and second reflective surfaces having diattenuation. The first principal axis of the first reflective surface is set rotated relative to the first principal axis of the second reflective surface by about an angle α0 between an unbroken parity-time symmetric region and a broken parity-time symmetric region. As a result, spatial hole burning and dual mode operation can be eliminated.