公开(公告)号：US12107378B2

公开(公告)日：2024-10-01

申请号：US17286863

申请日：2019-10-28

申请人： JX Nippon Mining & Metals Corporation

发明人： Yoshiki Yamazaki ,  Makoto Mikami

IPC分类号： H01S5/00 ,  H01S3/06 ,  C03C4/08 ,  H01S3/16 ,  H01S3/17

CPC分类号： H01S3/0625 ,  H01S3/0612 ,  H01S3/0617 ,  C03C4/08 ,  H01S3/16 ,  H01S3/1643 ,  H01S3/17 ,  H01S2301/02

摘要： A light absorbing layer which is bonded to a laser medium to configure a bonded body, wherein the light absorbing layer is formed from a glass material and, in an oscillation wavelength (wavelength of 650 nm or more and less than 1400 nm) of the laser medium, an absorption coefficient is 0.1 to 10.0 cm−1, a difference in refractive index between the light absorbing layer and the laser medium is within ±0.1, and a difference in linear thermal expansion coefficient between the light absorbing layer and the laser medium is within ±1 ppm/K. The present invention relates to a light absorbing layer for preventing parasitic oscillation, and aims to provide a material capable of suppressing the manufacturing cost and which can be easily processed for preparing a bonded body.

公开(公告)号：US12095221B2

公开(公告)日：2024-09-17

申请号：US17542579

申请日：2021-12-06

申请人： PowerPhotonic Ltd.

发明人： Paul Duncan Graham ,  Roy McBride ,  Natalia Trela-McDonald

IPC分类号： H01S3/094 ,  H01S3/06 ,  H01S3/0941

CPC分类号： H01S3/09415 ,  H01S3/0604 ,  H01S3/094049

摘要： A diode-pumped solid state laser system and a method of diode-pumping a solid state laser in which the emitter beamlets in the diode bar are directed at a beam transformation optical element which includes a continuous twisted surface to produce a uniform and symmetrised beam in the fast field which is then focused to match an input pump area of the gain medium of the solid state laser. Embodiments to square and rectangular flat-top intensity distributions are described using a Fourier lens and a set of cylindrical orthogonal lenses.

公开(公告)号：US20240297035A1

公开(公告)日：2024-09-05

申请号：US18663177

申请日：2024-05-14

申请人： Hamamatsu Photonics K.K. ,  Energetiq Technology, Inc.

发明人： Matthew Partlow ,  Donald K. Smith ,  Matthew Besen ,  Akinori ASAI

IPC分类号： H01J61/54 ,  H01J61/16 ,  H01J65/00 ,  H01J65/04 ,  H01S3/06 ,  H01S3/091 ,  H01S3/094 ,  H01S3/1115 ,  H01S3/13 ,  H01S3/16

CPC分类号： H01J61/54 ,  H01J61/16 ,  H01J65/00 ,  H01J65/04 ,  H01S3/0602 ,  H01S3/0621 ,  H01S3/0912 ,  H01S3/094038 ,  H01S3/1115 ,  H01S3/1623 ,  H01S3/1643 ,  H01S3/1305

摘要： An electrodeless laser-driven light source includes a laser that generates a CW sustaining light. A pump laser generates pump light. A Q-switched laser crystal receives the pump light generated by the pump laser and generates pulsed laser light at an output in response to the generated pump light. A first optical element projects the pulsed laser light along a first axis to a breakdown region in a gas-filled bulb comprising an ionizing gas. A second optical element projects the CW sustaining light along a second axis to a CW plasma region in the gas-filled bulb comprising the ionizing gas. A detector detects plasma light generated by a CW plasma and generates a detection signal at an output. A controller generates control signals that control the pump light to the Q-switched laser crystal so as to extinguish the pulsed laser light within a time delay after the detection signal exceeds a threshold level.

公开(公告)号：US12080985B1

公开(公告)日：2024-09-03

申请号：US17157953

申请日：2021-01-25

申请人： Arete Associates

发明人： James Murray ,  Micah Boyd

IPC分类号： H01S3/08 ,  H01S3/06 ,  H01S3/081 ,  H01S3/083 ,  H01S3/105 ,  H01S3/107 ,  H01S3/0941

CPC分类号： H01S3/083 ,  H01S3/0602 ,  H01S3/08054 ,  H01S3/08059 ,  H01S3/08095 ,  H01S3/0813 ,  H01S3/0817 ,  H01S3/105 ,  H01S3/107 ,  H01S3/0941

摘要： Provided herein are systems and methods of manufacture and operation for a compact laser to achieve high-intensity output pulses. These compact laser resonators and methods rely upon separate and distinct functions of the laser resonator to be operated in balance such that the functions, while deleterious when separate are supportive of laser generation and growth when combined within a small volume laser resonator as described herein. The combined elements of the described laser resonator include a delicate balance that allows the laser to operate between plane-parallel operation and unstable operation. This operation mode further allows distinct methods of construction and operation that allow the compact laser to be reliably assembled and tested during assembly. Therefore, despite requiring a delicate balance of disparate elements, the described laser resonator results in a compact robust laser.

公开(公告)号：US20240250494A1

公开(公告)日：2024-07-25

申请号：US18563971

申请日：2022-05-26

申请人： SHIN-ETSU CHEMICAL CO., LTD. ,  NATIONAL UNIVERSITY CORPORATION TOYOHASHI UNIVERSITY OF TECHNOLOGY

发明人： Toshiaki WATANABE ,  Taichi GOTO ,  Mitsuteru INOUE

IPC分类号： H01S3/1123 ,  G02F1/09 ,  H01S3/06 ,  H01S3/16

CPC分类号： H01S3/1124 ,  H01S3/0604 ,  H01S3/1611 ,  H01S3/164 ,  G02F1/09

摘要： A Q-switch structure including, a solid-state laser medium, and a magneto-optical material, wherein the solid-state laser medium and the magneto-optical material are joined and integrated. In addition, the solid-state laser medium has a thickness of 1 mm or more, and the solid-state medium and the magneto-optical material are directly joined. Consequently, the Q-switch is applicable to high optical output and contributes to the miniaturization of a laser apparatus.

公开(公告)号：US12014918B2

公开(公告)日：2024-06-18

申请号：US18465022

申请日：2023-09-11

申请人： Hamamatsu Photonics K.K. ,  Energetiq Technology, Inc.

发明人： Matthew Partlow ,  Donald K. Smith ,  Matthew Besen ,  Akinori Asai

IPC分类号： H01J61/54 ,  H01J61/16 ,  H01J65/00 ,  H01J65/04 ,  H01S3/06 ,  H01S3/091 ,  H01S3/094 ,  H01S3/1115 ,  H01S3/16 ,  H01S3/13

CPC分类号： H01J61/54 ,  H01J61/16 ,  H01J65/00 ,  H01J65/04 ,  H01S3/0602 ,  H01S3/0621 ,  H01S3/0912 ,  H01S3/094038 ,  H01S3/1115 ,  H01S3/1623 ,  H01S3/1643 ,  H01S3/1305

摘要： A method of generating light with a laser-driven light source includes generating a CW sustaining light and propagating the CW sustaining light to a gas filled bulb comprising an ionizing gas. A pump light is generated. A Q-switched laser crystal is irradiated with the generated pump light, thereby generating pulsed laser light. The pulsed laser light is propagated to the gas filled bulb comprising the ionizing gas so as to generate a CW plasma that emits light. The light generated by the CW plasma in the gas filled bulb is detected. The pump light is controlled so as to extinguish the pulsed laser light after the light generated by the CW plasma is detected.

公开(公告)号：US12009628B2

公开(公告)日：2024-06-11

申请号：US17560358

申请日：2021-12-23

申请人： VIETTEL GROUP

发明人： Van Tuan Vu ,  Trung Anh Hoang ,  Trung Hieu Le

IPC分类号： H01S3/1115 ,  H01S3/06 ,  H01S3/094 ,  H01S3/0941 ,  H01S3/113 ,  H01S3/16 ,  H01S3/17

CPC分类号： H01S3/1115 ,  H01S3/094049 ,  H01S3/094076 ,  H01S3/09415 ,  H01S3/113 ,  H01S3/1608 ,  H01S3/1618 ,  H01S3/17 ,  H01S3/061

摘要： The passively q-switched diode end-pumped solid-state laser is used the gain medium made of Er:Yb doped crystal and the Q-switch made of Co2+:MgAl2O4 crystal. The optical elements are optimally designed for the resonator to achieve pulse energy in a range 0.5 mJ≤E≤2 mJ with the pulse width in a range of 4 ns-15 ns. The resonator is appropriate to use in laser rangefinders, target designator, and other products in military and civilian applications.

公开(公告)号：US20240106182A1

公开(公告)日：2024-03-28

申请号：US18275680

申请日：2022-02-03

申请人： HAMAMATSU PHOTONICS K.K.

发明人： Yuki MURAMATSU ,  Takashi SEKINE ,  Yuma HATANO ,  Yoshinori TAMAOKI ,  Masateru KURATA

IPC分类号： H01S3/02 ,  H01S3/04 ,  H01S3/06 ,  H01S3/07

CPC分类号： H01S3/025 ,  H01S3/0404 ,  H01S3/0604 ,  H01S3/07 ,  H01S3/1643

摘要： Disclosed is a laser medium unit that includes a laser medium and a holding body. The laser medium has a pair of end surfaces. The holding body surrounds the laser medium when viewed form a direction intersecting with the pair of end surfaces and holds the laser medium. The holding body includes a deformation allowing portion that extends from the inside to the outside of the holding body when viewed from the direction intersecting with the pair of end surfaces. The laser medium and the holding body are in contact with each other. A contact region of the holding body with the laser medium has a width in the direction intersecting with the pair of end surfaces and extends along a side surface of the laser medium when viewed from the direction intersecting with the pair of end surfaces.

公开(公告)号：US11848531B2

公开(公告)日：2023-12-19

申请号：US17696755

申请日：2022-03-16

申请人： Quantum-Si Incorporated

发明人： Jonathan M. Rothberg ,  Jason W. Sickler ,  Lawrence C. West ,  Faisal R. Ahmad ,  Paul E. Glenn ,  Jack Jewell ,  John Glenn ,  Jose Camara ,  Jeremy Christopher Jordan ,  Todd Rearick ,  Farshid Ghasemi ,  Jonathan C. Schultz ,  Keith G. Fife ,  Benjamin Cipriany

IPC分类号： H01S3/0941 ,  H01S3/00 ,  H01S3/1115 ,  H01S3/02 ,  H01S3/081 ,  G02F1/37 ,  H01S3/08 ,  H01S3/16 ,  H01S3/10 ,  H01S3/1112 ,  H01S3/04 ,  H01S3/06 ,  H01S3/042

CPC分类号： H01S3/1115 ,  G02F1/37 ,  H01S3/025 ,  H01S3/0813 ,  H01S3/08072 ,  H01S3/09415 ,  H01S3/1611 ,  H01S3/1673 ,  H01S3/0092 ,  H01S3/042 ,  H01S3/0407 ,  H01S3/0623 ,  H01S3/0811 ,  H01S3/0941 ,  H01S3/10046 ,  H01S3/1112 ,  H01S3/1653

摘要： Apparatus and methods for producing ultrashort optical pulses are described. A high-power, solid-state, passively mode-locked laser can be manufactured in a compact module that can be incorporated into a portable instrument. The mode-locked laser can produce sub-50-ps optical pulses at a repetition rates between 200 MHz and 50 MHz, rates suitable for massively parallel data-acquisition. The optical pulses can be used to generate a reference clock signal for synchronizing data-acquisition and signal-processing electronics of the portable instrument.

公开(公告)号：US20230318245A1

公开(公告)日：2023-10-05

申请号：US18022764

申请日：2021-08-19

申请人： HAMAMATSU PHOTONICS K.K.

发明人： Takuto IGUCHI ,  Yoshinori KATO ,  Takaaki MORITA ,  Kazuki KAWAI

IPC分类号： H01S3/02 ,  H01S3/042 ,  H01S3/0941 ,  H01S3/06 ,  H01S3/04

CPC分类号： H01S3/025 ,  H01S3/042 ,  H01S3/0941 ,  H01S3/061 ,  H01S3/0407

摘要： Disclosed is a laser device includes: a rod-shaped laser medium extending in a first direction; a first light source unit including a first base and a plurality of excitation light sources; a second light source unit arranged side by side with the first light source unit in a second direction intersecting with the first direction, the second light source unit including a second base and a plurality of excitation light sources; and a holder supporting the laser medium, the first light source unit, and the second light source unit. At least one of the first base and the holder includes a first regulating part configured to regulate a position of the first base with respect to the holder, and at least one of the second base and the holder includes a second regulating part configured to regulate a position of the second base with respect to the holder.