公开(公告)号：US09941654B2

公开(公告)日：2018-04-10

申请号：US14842058

申请日：2015-09-01

Applicant: Coherent, Inc.

Inventor： Andrei Starodoumov ,  Dmitri Simanovski

IPC: H01S3/067 ,  H01S3/16 ,  H01S3/23 ,  H01S3/10 ,  H01S3/11 ,  H01S3/094 ,  H01S3/06 ,  H01S3/08 ,  H01S3/081

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.

公开(公告)号：US20170222389A1

公开(公告)日：2017-08-03

申请号：US15493106

申请日：2017-04-20

Applicant: Huazhong University of Science and Technology

Inventor： Hanyuan CHEN ,  Yingxiong QIN ,  Hao PENG ,  Chenhao WAN ,  Sichen LONG ,  Xiangxi WU ,  Xiahui TANG

IPC: H01S3/032 ,  H01S3/0943 ,  H01S3/22 ,  H01S3/04 ,  H01S3/036 ,  H01S3/034 ,  H01S3/038 ,  H01S3/0941

CPC classification number: H01S3/0323 ,  H01S3/034 ,  H01S3/036 ,  H01S3/038 ,  H01S3/0388 ,  H01S3/0404 ,  H01S3/0405 ,  H01S3/0407 ,  H01S3/041 ,  H01S3/094084 ,  H01S3/0941 ,  H01S3/09415 ,  H01S3/0943 ,  H01S3/09713 ,  H01S3/0975 ,  H01S3/2207

Abstract: A gas laser, including: a semiconductor laser, an optical beam-shaping system, a pair of electrodes, a discharge tube, a rear mirror, and an output mirror. The pair of electrodes includes two electrodes. The electrodes are symmetrically disposed at an outer layer of the discharge tube in parallel. The electrodes are connected to a radio-frequency power supply via a matching network, and the electrodes operate to modify working gas in the discharge tube through radio-frequency discharge. The rear mirror and the output mirror are disposed at two end surfaces of the discharge tube, respectively. The rear mirror, taken together with the output mirror and the discharge tube, form a resonant cavity. The output mirror is configured to output a laser beam.

公开(公告)号：US20160285225A1

公开(公告)日：2016-09-29

申请号：US15034130

申请日：2013-11-22

Applicant: HAN'S LASER TECHNOLOGY INDUSTRY GROUP CO., LTD. ,  HAN'S CNC TECHNOLOGY CO., LTD.

Inventor： Lei Xiao ,  Chengwan Gong ,  Jiantao Zhao ,  Jinbin Yang ,  Yanhua Ning ,  Yunfeng Gao

IPC: H01S3/06 ,  H01S3/16 ,  H01S3/042 ,  H01S3/08 ,  H01S3/081 ,  G02B5/00 ,  G02B5/30

CPC classification number: H01S3/0604 ,  G02B5/001 ,  G02B5/3066 ,  H01S3/025 ,  H01S3/042 ,  H01S3/0612 ,  H01S3/0615 ,  H01S3/0804 ,  H01S3/08054 ,  H01S3/08059 ,  H01S3/081 ,  H01S3/0813 ,  H01S3/0933 ,  H01S3/094084 ,  H01S3/1618 ,  H01S3/1643 ,  H01S2301/14 ,  H01S2301/20

Abstract: A radial polarization disk laser, including a pumping source, a collimator lens, a focusing lens, a laser gain medium, a Brewster axial cone, and a output lens, which are sequentially arranged along a laser light path. An angle formed between the conical surface and the bottom surface of said Brewster axial cone is a Brewster's angle. Said laser gain medium is bonded with said bottom surface; said laser gain medium and said output lens form a laser harmonic oscillator cavity therebetween. The pumped laser light emitted by said pumping source passes through said collimator lens and said focusing lens, then is focused on the laser gain medium, and. the generated photons oscillate in said laser harmonic oscillator cavity, and then a radial polarized laser beam is finally output by said output lens.

Abstract translation: 一种径向偏振光盘激光器，包括沿着激光光路顺序布置的泵浦源，准直透镜，聚焦透镜，激光增益介质，布鲁斯特轴向锥体和输出透镜。 在布鲁斯特轴向锥体的锥形表面和底面之间形成的角度是布鲁斯特角。 所述激光增益介质与所述底表面结合; 所述激光增益介质和所述输出透镜在其间形成激光谐波振荡器腔。 由所述泵浦源发射的泵浦激光穿过所述准直透镜和所述聚焦透镜，然后聚焦在激光增益介质上。 所生成的光子在所述激光谐波振荡器腔中振荡，然后由所述输出透镜最终输出径向偏振激光束。

公开(公告)号：US20160268767A1

公开(公告)日：2016-09-15

申请号：US15030538

申请日：2014-08-25

Applicant: ROBERT BOSCH GMBH

Inventor： Heiko Ridderbusch

IPC: H01S3/16 ,  F02P23/04 ,  H01S3/04 ,  H01S3/06 ,  H01S3/094 ,  H01S3/11

CPC classification number: H01S3/1698 ,  F02P23/04 ,  H01S3/0407 ,  H01S3/0612 ,  H01S3/0627 ,  H01S3/08 ,  H01S3/094 ,  H01S3/094084 ,  H01S3/09415 ,  H01S3/11 ,  H01S3/113 ,  H01S3/1618 ,  H01S3/164 ,  H01S3/1643 ,  H01S3/1696 ,  H01S5/183

Abstract: A laser ignition system, in particular for an internal combustion engine, including a vertical emitter and a laser-active crystal, the laser-active crystal being doped in at least some areas using ytterbium, the ytterbium-doped area having a length of 200 μm to 7000 μm. The monolithic laser is based on a YAG or LuAG host crystal having 3 differently doped areas: a laser-active ytterbium-doped area, an undoped area which determines the resonator length and therefore the pulse duration, and a chromium-doped or vanadium-doped area for the passive Q-switch. The resonator is delimited by 2 mirrors.

Abstract translation: 一种激光点火系统，特别是用于包括垂直发射器和激光 - 活性晶体的内燃机的激光点火系统，使用镱在至少一些区域掺杂激光活性晶体，掺杂镱的区域具有200μm的长度 至7000μm。 单片激光器基于具有3个不同掺杂区域的YAG或LuAG主机晶体：激光有源镱掺杂区域，确定谐振器长度并因此确定脉冲持续时间的未掺杂区域，以及掺杂铬或钒的掺杂 无源Q开关区域。 谐振器由2个镜子界定。

公开(公告)号：US09331451B2

公开(公告)日：2016-05-03

申请号：US14501401

申请日：2014-09-30

Applicant: TRUMPF LASER GMBH

Inventor： Dirk Sutter ,  Alexander Killi ,  Jochen Kleinbauer ,  Yufeng Li

IPC: H01S3/091 ,  H01S3/0941 ,  H01S5/065 ,  H01S5/14 ,  H01S3/094 ,  H01S3/1055 ,  H01S3/106 ,  H01S3/16 ,  H01S3/06

CPC classification number: H01S3/091 ,  H01S3/0604 ,  H01S3/094015 ,  H01S3/094084 ,  H01S3/09415 ,  H01S3/1055 ,  H01S3/1062 ,  H01S3/1618 ,  H01S3/1643 ,  H01S5/0654 ,  H01S5/0656 ,  H01S5/142 ,  H01S5/146

Abstract: The disclosure relates to a pump radiation arrangement comprising: a pump radiation source for producing pump radiation, a means for stabilizing the wavelength of the pump radiation source and a laser-active medium through which the pump radiation passes in a bidirectional manner. The pump radiation arrangement also has a retro-reflector for reflecting pump radiation which is not absorbed by the laser-active medium back to the pump radiation source and a wavelength-selective element for preventing a wavelength destabilization of the pump radiation source by filtering out undesirable spectral portions of pump radiation which is not absorbed by the laser-active medium. The invention also relates to an associated method for pumping a laser-active medium.

公开(公告)号：US20150263479A1

公开(公告)日：2015-09-17

申请号：US14431943

申请日：2013-08-08

Applicant: THALES HOLDINGS UK PLC

Inventor： Trevor Cook ,  Stephen Lee ,  Mark Silver

IPC: H01S3/0941 ,  H01S3/094 ,  H01S3/04 ,  H01S3/17 ,  H01S3/11 ,  H01S3/06 ,  H01S3/16

CPC classification number: H01S3/0941 ,  H01S3/025 ,  H01S3/0405 ,  H01S3/0606 ,  H01S3/061 ,  H01S3/0617 ,  H01S3/0625 ,  H01S3/094084 ,  H01S3/11 ,  H01S3/113 ,  H01S3/1608 ,  H01S3/1618 ,  H01S3/17 ,  H01S5/4025

Abstract: A side pumped laser comprises an elongated gain medium (10) provided between an output coupler (20) and a counter reflector (15) and a pump source (65) configured to provide radiation to the gain medium (10) along a side axis of the gain medium, wherein the laser is configured such that radiation from the pump source is directly incident on the gain medium; and the pump source is provided proximate, adjacent or in contact with the gain medium. The laser material and compositions, geometries and dimensions are designed to both maximise laser performance and to permit the use of construction techniques commonplace in the production of equipment designed for optical telecoms systems to facilitate low cost high volume and miniaturisation. The elongated gain medium (10) may have a polygonal cross-section with a non-coated side surface (55) receiving pump light emitted by a laser diode bar (65) while the other, non-emitting surfaces are coated with for example a gold coating (60) for pump light recycling and cooling of the gain medium by heat conduction. The counter reflector (15) may be provided on one facet of a passive Q-switch (30) and the output coupler (20) on a facet (50b) of the gain medium (10).

Abstract translation: 侧泵浦激光器包括设置在输出耦合器（20）和反向反射器（15）之间的细长增益介质（10）和泵源（65），其被构造成沿着侧向轴线的侧轴向增益介质（10）提供辐射 所述增益介质，其中所述激光器被配置为使得来自所述泵浦源的辐射直接入射在所述增益介质上; 并且所述泵浦源被设置为接近，相邻或与所述增益介质接触。 激光材料和组合物，几何形状和尺寸被设计成最大限度地提高激光器性能，并允许在为光通信系统设计的设备的生产中常用的构造技术使用，以便于低成本大容量和小型化。 细长增益介质（10）可以具有多边形横截面，其中未涂覆的侧表面（55）接收由激光二极管棒（65）发射的泵浦光，而另一个非发射表面涂覆有例如 金涂层（60），用于泵光回收和通过热传导冷却增益介质。 反射器（15）可以设置在无源Q开关（30）的一个面上，输出耦合器（20）位于增益介质（10）的小平面（50b）上。

公开(公告)号：US20150171586A1

公开(公告)日：2015-06-18

申请号：US14628772

申请日：2015-02-23

Applicant: TRUMPF LASER GMBH

Inventor： Sven-Silvius Schad ,  Elke Dolores Kaiser

IPC: H01S3/042

CPC classification number: H01S3/042 ,  H01S3/0405 ,  H01S3/0604 ,  H01S3/0621 ,  H01S3/094084

Abstract: A solid-state laser arrangement includes a plate-like solid body including a laser-active medium, a heat sink, a layer of adhesive between a carrier face of the heat sink and the plate-like solid body, and a reflective coating on a side of the plate-like solid body facing the adhesive layer, in which the adhesive layer is completely shielded from radiation from the plate-like solid body by a radiation-impermeable region between the side of the plate-like solid body facing the adhesive layer and the carrier face of the heat sink.

Abstract translation: 固体激光装置包括：板状固体，其包括激光活性介质，散热器，散热器的载体面和板状固体之间的粘合剂层，以及反射涂层 面向粘合剂层的板状固体的一侧，其中粘合剂层通过面向粘合剂层的板状固体的侧面之间的辐射不可渗透区域完全屏蔽来自板状固体的辐射 和散热片的载体面。

公开(公告)号：US20140376573A1

公开(公告)日：2014-12-25

申请号：US13947824

申请日：2013-07-22

Applicant: Light Age, Inc.

Inventor： Donald F. Heller ,  Marc Klosner ,  Brian A. Pryor ,  Thangavel Thevar ,  Bruce Boczar

IPC: H01S3/30 ,  H01S3/23

CPC classification number: H01S3/305 ,  H01S3/0064 ,  H01S3/0078 ,  H01S3/094038 ,  H01S3/094084 ,  H01S3/1633 ,  H01S3/2325

Abstract: In one embodiment, the instant invention provides a method that includes: outputting a first laser beam having: a beam quality factor (M2) between 1 and 5, and a spectral width of less than 0.15 nm, where the outputting is performed by a laser generating component that includes a alexandrite laser oscillator; converting the first laser beam through a first Raman cell to produce a second laser beam, where the first Raman cell is filled with a first gas; and converting the second laser beam through a second Raman cell to produce a final laser beam, where the second Raman cell is filled with a second gas and is operationally positioned after the first Raman cell, where the first gas and the second gas are different gasses, and where the final laser beam having: a second energy of at least 1 mJ, and at least one wavelength longer than 2.5 micron.

Abstract translation: 在一个实施例中，本发明提供了一种方法，其包括：输出第一激光束，其具有：光束品质因子（M2）在1和5之间，光谱宽度小于0.15nm，其中输出由激光 包括亚历山大激光振荡器的发电元件; 通过第一拉曼单元转换第一激光束以产生第二激光束，其中第一拉曼单元被第一气体填充; 以及通过第二拉曼单元转换所述第二激光束以产生最终的激光束，其中所述第二拉曼单元被第二气体填充并且在第一拉曼单元之后被操作地定位，其中所述第一气体和所述第二气体是不同的气体 并且其中最终激光束具有至少1mJ的第二能量和至少一个长于2.5微米的波长的激光束。

公开(公告)号：US20140321484A1

公开(公告)日：2014-10-30

申请号：US14216353

申请日：2014-03-17

Applicant: Rafael Armando Sierra ,  John Robertson ,  Daniel Hohm ,  Christian Hoffman ,  Mirko Georgiev Mirkov

Inventor： Rafael Armando Sierra ,  John Robertson ,  Daniel Hohm ,  Christian Hoffman ,  Mirko Georgiev Mirkov

IPC: H01S3/08 ,  A61N5/06 ,  H01S3/102

CPC classification number: A61B18/203 ,  A61B2018/0047 ,  A61N5/0616 ,  A61N2005/067 ,  H01S3/0092 ,  H01S3/0627 ,  H01S3/08018 ,  H01S3/08054 ,  H01S3/093 ,  H01S3/094038 ,  H01S3/094076 ,  H01S3/094084 ,  H01S3/1024 ,  H01S3/107 ,  H01S3/1106 ,  H01S3/1109 ,  H01S3/1121 ,  H01S3/1611 ,  H01S3/1623 ,  H01S3/1633 ,  H01S3/1643 ,  H01S3/1673

Abstract: Methods, systems and apparatus are disclosed for delivery of pulsed treatment radiation by employing a pump radiation source generating picosecond pulses at a first wavelength, and a frequency-shifting resonator having a lasing medium and resonant cavity configured to receive the picosecond pulses from the pump source at the first wavelength and to emit radiation at a second wavelength in response thereto, wherein the resonant cavity of the frequency-shifting resonator has a round trip time shorter than the duration of the picosecond pulses generated by the pump radiation source. Methods, systems and apparatus are also disclosed for providing beam uniformity and a sub-harmonic resonator.

Abstract translation: 公开了用于通过采用产生第一波长的皮秒脉冲的泵浦辐射源来递送脉冲处理辐射的方法，系统和装置，以及具有激光介质和谐振腔的频移谐振器，其配置成从泵浦源接收皮秒脉冲 并且响应于第二波长发射第二波长的辐射，其中所述频移谐振器的谐振腔具有比由泵浦辐射源产生的皮秒脉冲的持续时间短的往返时间。 还公开了用于提供光束均匀性和次谐波谐振器的方法，系统和装置。

公开(公告)号：US08797512B2

公开(公告)日：2014-08-05

申请号：US13615881

申请日：2012-09-14

Applicant: Roger Stettner ,  Howard Bailey ,  Brad Short ,  Laurent Heughebaert ,  Patrick Gilliland

Inventor： Roger Stettner ,  Howard Bailey ,  Brad Short ,  Laurent Heughebaert ,  Patrick Gilliland

IPC: G01C3/08

CPC classification number: G01S17/936 ,  G01S7/4814 ,  G01S7/4816 ,  G01S7/4818 ,  G01S7/484 ,  G01S17/06 ,  G01S17/89 ,  H01S3/005 ,  H01S3/0092 ,  H01S3/025 ,  H01S3/042 ,  H01S3/0604 ,  H01S3/061 ,  H01S3/0627 ,  H01S3/08063 ,  H01S3/09408 ,  H01S3/094084 ,  H01S3/0941 ,  H01S3/09415 ,  H01S3/10092 ,  H01S3/113 ,  H01S3/1305 ,  H01S3/1312 ,  H01S3/1608 ,  H01S3/1611 ,  H01S3/1643 ,  H01S3/17 ,  H01S5/02415 ,  H01S5/02438

Abstract: A three dimensional imaging camera comprises a system controller, pulsed laser transmitter, receiving optics, an infrared focal plane array light detector, and an image processor. The described invention is capable of developing a complete 3-D scene from a single point of view. The 3-D imaging camera utilizes a pulsed laser transmitter capable of illuminating an entire scene with a single high power flash of light. The 3-D imaging camera employs a system controller to trigger a pulse of high intensity light from the pulsed laser transmitter, and counts the time from the start of the transmitter light pulse. The light reflected from the illuminated scene impinges on a receiving optics and is detected by a focal plane array optical detector. An image processor applies image enhancing algorithms to improve the image quality and develop object data for subjects in the field of view of the flash ladar imaging camera.

Abstract translation: 三维成像摄像机包括系统控制器，脉冲激光发射器，接收光学器件，红外焦平面阵列光检测器和图像处理器。 所描述的发明能够从单一的角度开发完整的3-D场景。 3-D成像摄像机利用脉冲激光发射器能够通过单次高功率闪光照明整个场景。 3-D成像摄像机采用系统控制器来触发来自脉冲激光发射器的高强度光的脉冲，并对从发射器光脉冲开始的时间进行计数。 从照明场景反射的光照射在接收光学元件上，并由焦平面阵列光学检测器检测。 图像处理器应用图像增强算法以改善图像质量并且在闪光灯照相机的视野中为被摄体开发对象数据。