公开(公告)号：US20240297035A1

公开(公告)日：2024-09-05

申请号：US18663177

申请日：2024-05-14

Applicant: Hamamatsu Photonics K.K. ,  Energetiq Technology, Inc.

Inventor： Matthew Partlow ,  Donald K. Smith ,  Matthew Besen ,  Akinori ASAI

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

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

Abstract: 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：US12014918B2

公开(公告)日：2024-06-18

申请号：US18465022

申请日：2023-09-11

Applicant: Hamamatsu Photonics K.K. ,  Energetiq Technology, Inc.

Inventor： Matthew Partlow ,  Donald K. Smith ,  Matthew Besen ,  Akinori Asai

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

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

Abstract: 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：US20230178357A1

公开(公告)日：2023-06-08

申请号：US18161282

申请日：2023-01-30

Applicant: Hamamatsu Photonics K.K. ,  ENERGETIQ TECHNOLOGY, INC.

Inventor： Matthew Partlow ,  Donald Smith ,  Matthew Besen ,  Akinori Asai

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

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

Abstract: 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：US20190199051A1

公开(公告)日：2019-06-27

申请号：US16309021

申请日：2016-06-29

Applicant: CSEM CENTRE SUISSE D'ELECTRONIQUE ET DE MICROTECHNIQUE SA - RECHERCHE ET DEVELOPPEMENT

Inventor： Tobias HERR ,  Steve LECOMTE

IPC: H01S3/067 ,  H01S3/06 ,  H01S3/08

CPC classification number: H01S3/06704 ,  H01S3/0621 ,  H01S3/0627 ,  H01S3/06725 ,  H01S3/06741 ,  H01S3/0675 ,  H01S3/08045 ,  H01S2301/085

Abstract: An optical resonator (100) comprises an optical waveguide device (10) having an optical axis (OA) and extending with a longitudinal length between two waveguide end facets (11), resonator mirrors (13) being arranged for enclosing a resonator section (14) of the optical waveguide device (10), and a ferrule (20) having two ferrule facets (21), wherein the optical waveguide device (10) is mounted to the ferrule (20) and the ferrule (20) extends along the full longitudinal length of optical waveguide device (10). Furthermore, an optical apparatus (200) including the optical resonator (100) and a method of manufacturing the optical resonator (100) are described.

公开(公告)号：US20180233874A1

公开(公告)日：2018-08-16

申请号：US15751258

申请日：2017-01-12

Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.

Inventor： Koichi HAMAMOTO ,  Ryuichi MATSUDA

IPC: H01S3/04 ,  H01S3/042 ,  H01S3/02 ,  H01S3/16 ,  H01S3/06

CPC classification number: H01S3/0407 ,  H01S3/005 ,  H01S3/025 ,  H01S3/027 ,  H01S3/0405 ,  H01S3/042 ,  H01S3/0604 ,  H01S3/0612 ,  H01S3/0621 ,  H01S3/1618 ,  H01S3/1643 ,  H01S3/2316

Abstract: A solid-state laser device includes an inner container, an outer container, a cooling medium supply unit, and a cover section. The inner container in which a laser medium is accommodated includes an inner light-transmitting unit. An outer light-transmitting unit of the outer container is provided at a part that faces the inner light-transmitting unit and is vacuum-insulated from the inner light-transmitting unit. The cooling medium supply unit supplies a cooling medium so that the cooling medium comes in contact with a surface other than a light input and output surface in the laser medium. The cover section partitions a light-passing area from a cooling medium supply area to which the cooling medium is supplied.

公开(公告)号：US09905992B1

公开(公告)日：2018-02-27

申请号：US15461394

申请日：2017-03-16

Applicant: LUMINAR TECHNOLOGIES, INC.

Inventor： David Welford ,  Martin A. Jaspan ,  Jason M. Eichenholz ,  Scott R. Campbell ,  Lane A. Martin ,  Matthew D. Weed

IPC: H01S3/11 ,  H01S3/0941 ,  G01S17/00 ,  G01S17/10

CPC classification number: H01S3/1115 ,  G01S7/4814 ,  G01S17/10 ,  G01S17/88 ,  H01S3/0092 ,  H01S3/061 ,  H01S3/0612 ,  H01S3/0621 ,  H01S3/0627 ,  H01S3/08 ,  H01S3/094076 ,  H01S3/094084 ,  H01S3/0941 ,  H01S3/09415 ,  H01S3/1022 ,  H01S3/113 ,  H01S3/1611 ,  H01S3/1643 ,  H01S3/1673 ,  H01S3/30

Abstract: In one embodiment, a lidar system includes a self-Raman laser that includes a Raman-active gain medium and a Q-switch. The self-Raman laser is configured to: produce Q-switched pulses of light at a lasing wavelength of the self-Raman laser; Raman-shift, in the Raman-active gain medium, at least a portion of the Q-switched pulses to produce Raman-shifted pulses of light, where the Raman-shifted pulses have a Raman-shifted wavelength that is longer than the lasing wavelength; and emit at least a portion of the Raman-shifted pulses. The lidar system further includes a scanner configured to scan the emitted pulses of light across a field of regard and a receiver configured to detect at least a portion of the scanned pulses of light scattered by a target located a distance from the lidar system. The lidar system also includes a processor configured to determine the distance from the lidar system to the target.

公开(公告)号：US20170063018A1

公开(公告)日：2017-03-02

申请号：US14842058

申请日：2015-09-01

Applicant: COHERENT, INC.

Inventor： Andrei STARODOUMOV ,  Dmitri SIMANOVSKI

IPC: H01S3/067 ,  H01S3/11 ,  H01S3/10 ,  H01S3/16 ,  H01S3/23

CPC classification number: H01S3/06716 ,  H01S3/0604 ,  H01S3/0621 ,  H01S3/08095 ,  H01S3/0817 ,  H01S3/094038 ,  H01S3/094042 ,  H01S3/094084 ,  H01S3/10061 ,  H01S3/1106 ,  H01S3/1618 ,  H01S3/1631 ,  H01S3/1643 ,  H01S3/165 ,  H01S3/1675 ,  H01S3/23 ,  H01S3/2325

Abstract: An apparatus for generating and amplifying laser beams at approximately 1 micrometer wavelength is disclosed. The apparatus includes an ytterbium-doped gain-crystal pumped by an ytterbium fiber-laser. The fiber-laser enables a pump wavelength to be selected that minimizes heating of the gain-crystal. The apparatus can be configured for generating and amplifying ultra-fast pulses, utilizing the gain-bandwidth of ytterbium-doped gain-crystals.

Abstract translation: 公开了一种用于产生和放大约1微米波长的激光束的装置。 该装置包括由镱光纤激光器泵浦的镱掺杂增益晶体。 光纤激光器能够选择最小化增益晶体的加热的泵浦波长。 该装置可以被配置为利用镱掺杂增益晶体的增益带宽来产生和放大超快脉冲。

公开(公告)号：US09478936B2

公开(公告)日：2016-10-25

申请号：US13890970

申请日：2013-05-09

Applicant: Raytheon Company

Inventor： Michael Ushinsky

IPC: B05C13/02 ,  C23C14/04 ,  C23C16/04 ,  H01S5/024 ,  C30B29/28 ,  C30B31/22 ,  H01S3/042 ,  H01S3/06 ,  H01S3/16

CPC classification number: H01S5/024 ,  B05C13/02 ,  C23C14/04 ,  C23C16/04 ,  C30B29/28 ,  C30B31/22 ,  H01S3/042 ,  H01S3/0621 ,  H01S3/0627 ,  H01S3/1643 ,  H01S3/1666 ,  Y10T156/10

Abstract: A method for preparing a surface of a YAG crystal for thermal bonding includes performing an ion implantation process to introduce nitrogen into a surface layer of the YAG crystal to replace depleted oxygen therein, to change surface energy of the surface layer of the YAG crystal and to provide desired bonding characteristics for the surface layer; and joining the ion implanted surface layer with a thermal management device configured to dissipate heat from the YAG crystal. Also, a micro-chip device having a YAG crystal whose surface is prepared with the above disclosed method is provided and a device for forming a metallization pattern on a surface of the YAG crystal is provided.

公开(公告)号：US09368931B2

公开(公告)日：2016-06-14

申请号：US13378172

申请日：2010-06-15

Applicant: Thomas Bragagna ,  Arne Heinrich

Inventor： Thomas Bragagna ,  Arne Heinrich

IPC: H01S3/14 ,  H01S3/16 ,  A61B18/20 ,  A61B18/22 ,  H01S3/0941 ,  H01S3/042 ,  H01S3/06 ,  H01S3/02 ,  H01S3/04 ,  H01S3/094 ,  H01S3/11 ,  H01S3/08

CPC classification number: H01S3/0941 ,  A61B18/20 ,  H01S3/025 ,  H01S3/0405 ,  H01S3/042 ,  H01S3/061 ,  H01S3/0621 ,  H01S3/0627 ,  H01S3/08072 ,  H01S3/094057 ,  H01S3/09408 ,  H01S3/094084 ,  H01S3/1118 ,  H01S3/1608

Abstract: A monolithic, side pumped solid-state laser (1) comprising a laser resonator structure (3) comprised of a laser gain medium (2) having a longitudinal axis (L), wherein the laser resonator structure (3) comprises end faces (4) forming a linear optical path resonant cavity there between, at least one of the end faces (4) comprising at least partially reflecting laser mirrors (4a, 4b) in particular deposited thereon, the laser gain medium (2) comprising a side face (2a) for receiving pump light (5a) of a pump source (5), wherein the pump light (5a) is generated by a diode laser (5), and comprising a conductive cooler (6) comprising contact faces (6c) contacting the laser gain medium (2), and comprising a reflector (7) arranged opposite to the side face (2a) with respect to the longitudinal axis (L), wherein the laser gain medium (2) is a low gain material.

Abstract translation: 包括由具有纵向轴线（L）的激光增益介质（2）组成的激光谐振器结构（3）的单片侧泵浦固体激光器（1），其中所述激光谐振器结构（3）包括端面 ）在其间形成线性光路谐振腔，所述端面（4）中的至少一个包括特别沉积在其上的至少部分反射的激光反射镜（4a，4b），所述激光增益介质（2）包括侧面 2a），用于接收泵浦源（5）的泵浦光（5a），其中泵浦光（5a）由二极管激光器（5）产生，并且包括导电冷却器（6），导电冷却器（6）包括接触面 激光增益介质（2），并且包括相对于所述纵向轴线（L）与所述侧面（2a）相对布置的反射器（7），其中所述激光增益介质（2）是低增益材料。

公开(公告)号：US09287112B2

公开(公告)日：2016-03-15

申请号：US14418500

申请日：2013-08-01

Applicant: Martin A. Stuart ,  Stephen L. Cunningham

Inventor： Martin A. Stuart ,  Stephen L. Cunningham

IPC: H01S3/08 ,  H01S3/091 ,  H01S3/092 ,  H01L21/02 ,  H01L21/3205 ,  H01S3/06 ,  H01S3/04 ,  H01S3/042 ,  H01S3/093 ,  H01S3/16 ,  H01S3/23 ,  H01S3/11 ,  H01L31/024 ,  H01L31/18 ,  C23C16/27 ,  G02B6/122

CPC classification number: H01S3/0606 ,  C23C14/02 ,  C23C14/28 ,  C23C16/27 ,  G02B6/1223 ,  H01L21/02115 ,  H01L21/02181 ,  H01L21/02183 ,  H01L21/02194 ,  H01L21/02266 ,  H01L21/3205 ,  H01L31/024 ,  H01L31/18 ,  H01S3/0071 ,  H01S3/0407 ,  H01S3/042 ,  H01S3/0615 ,  H01S3/0621 ,  H01S3/08027 ,  H01S3/08086 ,  H01S3/08095 ,  H01S3/0915 ,  H01S3/092 ,  H01S3/093 ,  H01S3/11 ,  H01S3/1601 ,  H01S3/1623 ,  H01S3/1625 ,  H01S3/163 ,  H01S3/1633 ,  H01S3/1636 ,  H01S3/1666 ,  H01S3/23 ,  H01S3/2316 ,  H01S3/2333

Abstract: A slab laser and its method of use for high power applications including the manufacture of semiconductors and deposition of diamond and/or diamond-like-carbon layers, among other materials. A lamp driven slab design with a face-to-face beam propagation scheme and an end reflection that redirects the amplified radiation back out the same input surface is utilized. A side-to-side amplifier configuration permitting very high average and peak powers having scalability is also disclosed. Cavity filters adjacent to pump lamps convert the normally unusable UV portion of the pump lamp spectrum into light in the absorption band of the slab laser, thereby increasing the overall pump efficiency. The angle of the end reflecting surface is changed to cause the exit beam to be at a different angle than the inlet beam, thereby eliminating the costly need to separate the beams external to the laser with the subsequent loss of power.

Abstract translation: 平板激光器及其用于大功率应用的方法，包括半导体的制造和金刚石和/或类金刚石碳层的沉积等。 利用具有面对面波束传播方案的灯驱动平板设计和将放大的辐射重定向到相同的输入表面的端反射。 还公开了允许具有可扩展性的非常高的平均和峰值功率的侧向放大器配置。 与泵浦灯相邻的腔过滤器将泵灯光谱的通常不可用的UV部分转换成板激光器的吸收带中的光，从而提高整体泵效率。 改变端部反射表面的角度以使出射光束与入射光束处于不同的角度，从而消除了将激光外部的光束分离成随后的功率损耗的昂贵的需要。