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61. 发明申请

US20190115711A1 PULSE COMPRESSION IN CHIRPED PULSE LASER SYSTEMS 审中-公开
公开(公告)号：US20190115711A1
公开(公告)日：2019-04-18
申请号：US16061564
申请日：2016-12-15
申请人： Infinite Potential Laboratories LP , Institut natinal de la Recherche scientifique
发明人： Stephane PAYEUR , Sylvain FOURMAUX , Jean Claude KIEFFER , Steve MACLEAN
IPC分类号： H01S3/00 , H01S3/10 , H01S3/02 , H01S3/23
CPC分类号： H01S3/0057 , H01S3/005 , H01S3/0078 , H01S3/027 , H01S3/1003 , H01S3/10038 , H01S3/10053 , H01S3/10061 , H01S3/1625 , H01S3/1636 , H01S3/2308
摘要： In a general aspect, a chirped optical pulse is compressed by operation of diffraction gratings and a dispersive mirror having a smooth reflective surface. In some aspects, a chirped pulse laser system includes a programmable optical dispersive filter (PODF) operable to modify a spectral phase of optical pulses and a pulse compressor that receives an optical pulse based on an output of the PODF. The pulse compressor includes optical elements in a vacuum chamber. The optical elements define an optical path through the pulse compressor, and are arranged to disperse the optical pulse in the optical path. The optical elements include diffraction gratings and a dispersive mirror, which has a smooth reflective surface that defines a portion of the optical path.

62. 发明申请

US20190097380A1 Controlling output power of a laser amplifier with variable pulse rate 审中-公开
公开(公告)号：US20190097380A1
公开(公告)日：2019-03-28
申请号：US15849700
申请日：2017-12-21
申请人： Apple Inc.
发明人： Ido Luft , Andrew J. Sutton , Ronen Akerman
IPC分类号： H01S3/23 , H01S5/065 , H01S3/094 , H01S3/10
CPC分类号： H01S3/10038 , H01S3/06758 , H01S3/094003 , H01S3/10007 , H01S3/10046 , H01S3/10069 , H01S3/10084 , H01S3/1301 , H01S3/1305 , H01S3/1306 , H01S3/2308 , H01S3/2375 , H01S5/06216 , H01S5/0656
摘要： A laser system includes a master oscillator, which emits a train of optical seed pulses with variable intervals between the pulses. An optical power amplifier includes an optical gain medium, which receives and amplifies the optical seed pulses from the master oscillator, and a pump, which applies pump radiation to the optical gain medium. A pulse generator applies a control input to the master oscillator, which causes the intervals between the optical seed pulses to vary by at least 50% at a rate of change that is greater than a response frequency of the optical gain medium. A control unit drives the pump responsively to predicted intervals between the optical seed pulses, at a variable pump power selected so that the pulse amplitudes of the output pulses vary by no more than 20% irrespective of the varying intervals between the optical seed pulses.

63. 发明申请

US20180309261A1 LASER IGNITION DEVICE 审中-公开
公开(公告)号：US20180309261A1
公开(公告)日：2018-10-25
申请号：US15952762
申请日：2018-04-13
申请人： INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION NATIONAL INSTITUTES OF NATURAL SCIENCES
发明人： Takunori TAIRA , Hwan Hong LIM
IPC分类号： H01S3/11 , H01S3/16 , H01S3/0941 , H01S3/094
CPC分类号： H01S3/1115 , F02P5/00 , F02P23/04 , H01S3/0014 , H01S3/0612 , H01S3/0627 , H01S3/094053 , H01S3/094076 , H01S3/09415 , H01S3/10038 , H01S3/1022 , H01S3/113 , H01S3/1611 , H01S3/1643
摘要： To provide a laser ignition device in which the ignition efficiency is improved and the laser pulse energy necessary for ignition is minimized by optimizing the pulse time width of laser. The laser ignition device includes: a pulse laser oscillator 1 configured to output a beam having a wavelength λ [μm] and a beam quality M2; an energy controller 2 configured to control energy of pulse laser outputted from the pulse laser oscillator 1; a lens 3 having a focal length f [mm] and configured to focus the pulse laser outputted from the pulse laser oscillator 1; and a pulse time width controller 14 configured to control a time width of the pulse laser, wherein the pulse time width controller 14 controls the time width of the pulse laser to be 0.6 to 2 ns.

64. 发明申请

US20180102622A1 EXCIMER LASER DEVICE 审中-公开
公开(公告)号：US20180102622A1
公开(公告)日：2018-04-12
申请号：US15836878
申请日：2017-12-10
申请人： Gigaphoton Inc.
发明人： Kouji KAKIZAKI , Akira SUWA , Osamu WAKABAYASHI , Hiroshi UMEDA
IPC分类号： H01S3/097 , H01S3/23 , H01S3/038 , H01S3/10 , H01S3/13 , H01S3/134 , H01S3/225
CPC分类号： H01S3/2308 , H01S3/005 , H01S3/09702 , H01S3/0971 , H01S3/10007 , H01S3/10015 , H01S3/10038 , H01S3/10069 , H01S3/104 , H01S3/134 , H01S3/2222 , H01S3/225 , H01S3/2316
摘要： The excimer laser device receives data on a target value of pulse energy from an external device and outputs a pulse laser beam. The excimer laser device includes a master oscillator, at least one power amplifier including a chamber provided in an optical path of the pulse laser beam outputted from the master oscillator, a pair of electrodes provided in the chamber, and an electric power source configured to apply voltage to the pair of electrodes, and a controller configured to control the electric power source of one power amplifier of the at least one power amplifier to stop applying the voltage to the pair of electrodes based on the target value of the pulse energy.

65. 发明授权

US09583908B2 Pulsed iodine laser apparatus 有权
标题翻译：脉冲碘激光仪
公开(公告)号：US09583908B2
公开(公告)日：2017-02-28
申请号：US14857114
申请日：2015-09-17
申请人： Kiwamu Takehisa
发明人： Kiwamu Takehisa
IPC分类号： H01S3/223 , H01S3/036 , H01S3/092 , H01S3/22 , H01S3/23
CPC分类号： H01S3/036 , H01S3/092 , H01S3/09505 , H01S3/10038 , H01S3/104 , H01S3/2215 , H01S3/2308 , H01S3/2333
摘要： The disclosed invention relates to a pulsed iodine laser apparatus. The laser apparatus has a flashlamp-pumped iodine laser oscillator which produces a laser pulse with a full pulse width of longer than 1 microsecond, and a COIL amplifier. The laser apparatus may has a controller which controls the timing of injecting chlorine gas contained in a high-pressure chlorine tank into the singlet oxygen generator by outputting an open/close signal of the valve V2, and the timing of injecting iodine molecules contained in a iodine molecule tank into an amplifier chamber of the COIL amplifier.
摘要翻译：本发明涉及脉冲碘激光装置。激光装置具有闪光灯泵浦的碘激光振荡器，其产生具有大于1微秒的全脉冲宽度的激光脉冲和COIL放大器。激光装置可以具有控制器，该控制器通过输出阀V2的打开/关闭信号以及注入包含在单体氧气发生器中的碘分子的注入时间来控制将高压氯罐中所含的氯气注入到单线态氧发生器中的定时碘分子罐进入COIL放大器的放大器室。

66. 发明申请

US20160223766A1 OPTICAL DEVICE FOR BEAM COMBINING AND/OR ROUTING AND METHOD 有权
标题翻译：光束组合和/或路由和方法的光学装置
公开(公告)号：US20160223766A1
公开(公告)日：2016-08-04
申请号：US14068420
申请日：2013-10-31
申请人： U.S. Army Research Laboratory
发明人： Jeffrey Owen White
IPC分类号： G02B6/42 , G02B6/35 , H01S3/10 , H01S3/23 , G02B27/14 , H01S3/13
CPC分类号： G02B6/4286 , G02B6/3588 , G02B27/14 , H01S3/0071 , H01S3/10038 , H01S3/1305 , H01S3/1307 , H01S3/2383
摘要： A beam combining device comprising at least one beam splitter and phase adjustment circuitry. The at least one beam splitter comprises a semi-reflective surface, first and second inputs, and first and second outputs operatively connected to receive first and second light beams. The semi-reflective surface has first and second sides positioned such that light entering from one input is partially reflected through one output and partially transmitted through another output. The phase adjustment circuitry adjusts the relative phases of the first and second light beams so that light transmitted through the semi reflective surface from one input may be adjusted to have a phase which can cancels or constructively adds to light reflected from another input. Light having a combined power of the light beams, or a fraction thereof, may be selectively emitted through a selective output depending upon the adjustment of phases. Also, a method of operation is claimed.
摘要翻译：一种束组合装置，包括至少一个分束器和相位调节电路。所述至少一个分束器包括半反射表面，第一和第二输入以及可操作地连接以接收第一和第二光束的第一和第二输出。半反射表面具有第一和第二侧，使得从一个输入进入的光部分地通过一个输出反射并部分地透射通过另一个输出。相位调节电路调节第一和第二光束的相对相位，使得可以将从一个输入端传输通过半反射表面的光调节为具有可以抵消或构造地增加从另一个输入反射的光的相位。根据相位的调整，具有光束或其一部分的组合功率的光可以通过选择性输出选择性地发射。此外，要求保护操作的方法。

67. 发明授权

US09397465B2 Fiber laser device 有权
标题翻译：光纤激光装置
公开(公告)号：US09397465B2
公开(公告)日：2016-07-19
申请号：US14338095
申请日：2014-07-22
申请人： FUJIKURA LTD.
发明人： Yasuhiro Oba , Michihiro Nakai
IPC分类号： H01S3/30 , H01S3/067 , H01S3/08 , H01S3/094 , H01S3/11 , H01S3/0941 , H01S3/10 , H01S3/117 , H01S3/23 , H01S3/06 , H01S3/109
CPC分类号： H01S3/0675 , H01S3/0078 , H01S3/06 , H01S3/067 , H01S3/06754 , H01S3/08013 , H01S3/094003 , H01S3/094007 , H01S3/094042 , H01S3/094049 , H01S3/094076 , H01S3/09415 , H01S3/10007 , H01S3/10038 , H01S3/10069 , H01S3/109 , H01S3/1121 , H01S3/117 , H01S3/23 , H01S3/302
摘要： In a case where the period from the input of the output suspension instruction to the next output instruction is shorter than the fixed period of time, the seed laser light source and the pumping light source are in a pre-pumped state during the period from the end of the output state to the start of the next output state. In a case where the period from the input of the output suspension instruction to the next output instruction is longer than the fixed period of time, the seed laser light source and the pumping light source are in the pre-pumped state only for the fixed period of time from the input of the output instruction.
摘要翻译：在从输出暂停指示输入到下一个输出指令的周期比固定时间段短的情况下，种子激光光源和泵浦光源在从输出状态的结束到下一个输出状态的开始。在从输出停止指示输入到下一个输出指令的期间比固定时间长的情况下，种子激光光源和泵浦光源仅在固定期间处于预抽状态的时间从输入指令的输入。

68. 发明申请

US20160197451A1 LASER CONTROL SYSTEM AND METHOD 审中-公开
标题翻译：激光控制系统和方法
公开(公告)号：US20160197451A1
公开(公告)日：2016-07-07
申请号：US14996315
申请日：2016-01-15
申请人： Attodyne Lasers Inc.
发明人： Darren Kraemer , Tom Fortin
IPC分类号： H01S3/10 , H01S3/13 , H01S3/094
CPC分类号： H01S3/10069 , H01S3/005 , H01S3/0085 , H01S3/094076 , H01S3/10015 , H01S3/10038 , H01S3/1301 , H01S3/1305 , H01S3/2308
摘要： In a laser control system, control circuit, and method, a master oscillator laser generates a seed laser pulse train. An optical modulator receives the pulse train and modulate the pulse train based on a modulation signal to generate modulated seed pulses. A laser amplifier amplifies the modulated seed pulses to generate an amplified pulse sequence output. A control circuit controls the operation of the optical modulator. The control circuit receives a clock signal synchronized with the seed laser pulse train and a trigger input for asynchronous modulation of the seed laser pulse train, generates the modulation signal, and communicates the modulation signal to the optical modulator. The modulation signal controls the optical modulator to selectively transmit and attenuate seed pulses from the seed laser pulse train to produce modulated seed pulses corresponding to the trigger input and attenuated to maintain a predetermined amplitude envelope in the pulse sequence output.
摘要翻译：在激光控制系统，控制电路和方法中，主振荡器激光器产生种子激光脉冲串。光调制器接收脉冲序列并基于调制信号调制脉冲序列以产生调制的种子脉冲。激光放大器放大调制的种子脉冲以产生放大的脉冲序列输出。控制电路控制光调制器的操作。控制电路接收与种子激光脉冲串同步的时钟信号和用于种子激光脉冲串的异步调制的触发输入，产生调制信号，并将调制信号传送到光调制器。调制信号控制光调制器以选择性地发射和衰减来自种子激光脉冲串的种子脉冲，以产生对应于触发输入的调制种子脉冲并衰减，以便在脉冲序列输出中保持预定的幅度包络。

69. 发明申请

US20150372445A1 FEMTOSECOND LASER PROCESSING SYSTEM WITH PROCESS PARAMETERS CONTROLS AND FEEDBACK 审中-公开
标题翻译：具有过程参数控制和反馈的FEMTOSECOND激光加工系统
公开(公告)号：US20150372445A1
公开(公告)日：2015-12-24
申请号：US14837619
申请日：2015-08-27
申请人： IMRA AMERICA, INC.
发明人： Donald J. HARTER
IPC分类号： H01S3/10 , H01S3/108 , H01S3/00
CPC分类号： H01S3/10038 , G01J11/00 , H01S3/0014 , H01S3/005 , H01S3/0057 , H01S3/0064 , H01S3/0078 , H01S3/06754 , H01S3/10023 , H01S3/10061 , H01S3/102 , H01S3/1024 , H01S3/108 , H01S3/109 , H01S3/1305 , H01S3/1618
摘要： A femtosecond laser based laser processing system having a femtosecond laser, frequency conversion optics, beam manipulation optics, target motion control, processing chamber, diagnostic systems and system control modules. The femtosecond laser based laser processing system allows for the utilization of the unique heat control in micromachining, and the system has greater output beam stability, continuously variable repetition rate and unique temporal beam shaping capabilities.
摘要翻译：飞秒激光激光处理系统，具有飞秒激光，变频光学，光束操纵光学，目标运动控制，处理室，诊断系统和系统控制模块。基于飞秒激光的激光加工系统允许在微加工中利用独特的热控制，并且该系统具有更大的输出光束稳定性，连续可变的重复率和独特的时间波束整形能力。

70. 发明授权

US09192442B2 Laser modulation for coagulation 有权
公开(公告)号：US09192442B2
公开(公告)日：2015-11-24
申请号：US14701988
申请日：2015-05-01
申请人： AMS Research Corporation
发明人： Hyun Wook Kang , Raymond Adam Nemeyer , Michael Ray Hodel
IPC分类号： A61B18/20 , H01S3/10 , H01S3/117 , H01S3/16 , H01S3/109 , A61B17/00
CPC分类号： A61B18/20 , A61B2017/00154 , A61B2017/00172 , A61B2018/00589 , H01S3/10038 , H01S3/10046 , H01S3/1068 , H01S3/109 , H01S3/117 , H01S3/1611 , H01S3/1643
摘要： An apparatus has a pump module providing pump energy, a resonator and a controller. The resonator includes a gain medium receiving the pump energy from the pump module and producing light; reflective surfaces reflecting light produced by the gain medium back toward the gain medium; and a variable light attenuator receiving light produced by the gain medium. The controller controls the amount of light attenuated by the variable light attenuator such that the apparatus emits windows of pulses of laser light at spaced time intervals, each window containing a plurality of pulses of laser light and each interval between windows being larger than an interval between pulses within a window. The emitted windows of pulses of laser light heat tissue to a temperature that causes coagulation without vaporization.

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