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11. 发明授权

US10132751B2 Method and device for detecting flatness of a fluorescent wheel in a laser light source 有权
公开(公告)号：US10132751B2
公开(公告)日：2018-11-20
申请号：US15174407
申请日：2016-06-06
申请人： HISENSE CO., LTD. , Hisense USA Corp. , HISENSE INTERNATIONAL CO., LTD.
发明人： Fei Zhao , Xianrong Liu
IPC分类号： G01N21/64 , G01B11/30 , H01S3/22
摘要： An embodiment of the present disclosure discloses a method for detecting flatness of a fluorescent wheel in a laser light source, comprising: acquiring, during the rotation of a fluorescent wheel, a spot of laser light emitted by a laser reflected from a substrate of the fluorescent wheel; determining an inner diameter of the spot; and determining flatness of the fluorescent wheel according to the inner diameter of the spot.

12. 发明申请

US20180254596A1 TERAHERTZ LASER, TERAHERTZ SOURCE AND USE OF SUCH A TERAHERTZ LASER 审中-公开
公开(公告)号：US20180254596A1
公开(公告)日：2018-09-06
申请号：US15752976
申请日：2016-08-18
申请人： CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE , Universite de Lille
发明人： Jean-François Lampin , Antoine Pagies
IPC分类号： H01S3/0943 , F21V8/00 , H01S3/22
CPC分类号： H01S3/0943 , G02B6/0006 , G02B6/0008 , H01S1/06 , H01S3/0941 , H01S3/22 , H01S3/223 , H01S5/005 , H01S5/3401 , H01S2302/02
摘要： A terahertz laser suitable for emitting at least one first electromagnetic radiation, a first emission frequency of which is between 700 and 1200 GHz. The laser comprises an infrared laser source and a resonant cavity arranged to be optically pumped by the infrared laser source, the resonant cavity containing ammonia gas as an amplifier medium and having at least one configuration in which the resonant cavity is a resonant cavity at the first emission frequency. The infrared laser source is a continuous semiconductor laser source capable of exciting molecules of the amplifier medium from an initial energy level to at least one first excited energy level, the molecules of the amplifier medium placed in the first energy level being able to relax through a pure inversion transition for which the relaxation energy corresponds to the first emission frequency.

13. 发明授权

US09948055B2 Gas laser 有权
公开(公告)号：US09948055B2
公开(公告)日：2018-04-17
申请号：US15493106
申请日：2017-04-20
申请人： Huazhong University of Science and Technology
发明人： Hanyuan Chen , Yingxiong Qin , Hao Peng , Chenhao Wan , Sichen Long , Xiangxi Wu , Xiahui Tang
IPC分类号： H01S3/04 , H01S3/032 , H01S3/038 , H01S3/0943 , H01S3/0941 , H01S3/036 , H01S3/034 , H01S3/22
CPC分类号： 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
摘要： 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.

14. 发明授权

US09735534B2 Sub 200nm laser pumped homonuclear excimer lasers 有权
公开(公告)号：US09735534B2
公开(公告)日：2017-08-15
申请号：US14571100
申请日：2014-12-15
申请人： KLA-Tencor Corporation
发明人： Richard W. Solarz , Ilya Bezel , Anatoly Shchemelinin
IPC分类号： H01S3/094 , H01S3/22 , H01S3/225 , H01S3/0941 , H01S3/036
CPC分类号： H01S3/094 , H01S3/036 , H01S3/094042 , H01S3/094053 , H01S3/0941 , H01S3/2207 , H01S3/225
摘要： Disclosed are methods and apparatus for generating a sub-200 nm continuous wave (cw) laser. A laser apparatus includes a chamber for receiving at least a rare gas or rare gas mixtures and a pump laser source for generating at least one cw pump laser focused in the chamber for generating at least one laser-sustained plasma in the chamber. The laser apparatus further includes a system for forming an optical cavity in which the at least one laser-sustained plasma serves as an excitation source for producing at least one cw laser having a wavelength that is below about 200 nm. In one aspect, the at least one laser-sustained plasma has a shape that substantially matches a shape of the optical cavity.

15. 发明授权

US09653873B1 Self-locking atomic emission laser with an intracavity atomic plasma as the resonance line seeder 有权
公开(公告)号：US09653873B1
公开(公告)日：2017-05-16
申请号：US14139461
申请日：2013-12-23
申请人： Chemled Technologies, LLC
发明人： Radoslaw M. Sobczynski
IPC分类号： H01S5/00 , H01S3/22 , H01S3/07 , H01S5/028 , H01S5/022 , H01S3/097 , H01S3/225 , H01S3/134
CPC分类号： H01S3/073 , H01S3/07 , H01S3/09 , H01S3/097 , H01S3/0971 , H01S3/134 , H01S3/2207 , H01S3/2222 , H01S3/225 , H01S3/2375 , H01S5/0222 , H01S5/02415 , H01S5/028 , H01S5/0287 , H01S5/14
摘要： An intracavity plasma solid state laser with an emission line radiation source of determined wavelength seeding a semiconductor laser gain medium providing a high power laser beam of the determined wavelength. A plasma cell generates a determined wavelength based on an atomic emission line that is received by the semiconductor laser or laser diode having a broadband output encompassing the determined wavelength received from the plasma cell. The laser diode locks on to the determined wavelength and emits a high powered laser beam of the determined wavelength. The intracavity plasma solid state laser creates a laser beam of narrow linewidth comparable to the natural Voight or Doppler linewidth of atomic transition and higher power in a smaller size than previously possible. The intracavity plasma solid state laser is easily manufactured and suitable for placement in an array for targeting a predetermined area.

16. 发明授权

US09653869B1 Optical surface preservation techniques and apparatus 有权
公开(公告)号：US09653869B1
公开(公告)日：2017-05-16
申请号：US14063727
申请日：2013-10-25
申请人： Xemed LLC
发明人： F. William Hersman , David W. Watt
IPC分类号： H01S3/03 , H01S3/227 , H01S3/0941 , H01S3/22 , H01S3/034 , H01S3/036
CPC分类号： H01S3/031 , H01S3/032 , H01S3/0346 , H01S3/036 , H01S3/0405 , H01S3/041 , H01S3/0941 , H01S3/0943 , H01S3/104 , H01S3/227
摘要： Techniques and architecture are disclosed for preserving optical surfaces (e.g., windows, coatings, etc.) in a flowing gas amplifier laser system, such as a diode-pumped alkali laser (DPAL) system. In some instances, the disclosed techniques/architecture can be used, for example, to protect optical surfaces in a DPAL system from: (1) chemical attack by pump-bleached alkali vapor atoms and/or ions; and/or (2) fouling by adherence thereto of reaction products/soot produced in the DPAL. Also, in some instances, the disclosed techniques/architecture can be used to substantially match the geometry of the pumping volume with that of the lasing volume, thereby minimizing or otherwise reducing the effects of amplified spontaneous emission (ASE) on DPAL output power. Furthermore, in some cases, the disclosed techniques/architecture can be used to provide a DPAL system capable of producing a beam output power in the range of about 20 kW to 10 MW, or greater.

17. 发明授权

US09647414B2 Optically pumped micro-plasma 有权
公开(公告)号：US09647414B2
公开(公告)日：2017-05-09
申请号：US14168851
申请日：2014-01-30
申请人： Physical Sciences, Inc.
发明人： W. Terry Rawlins , Steven J. Davis , Kristin Galbally-Kinney , Jeffrey Hopwood , Alan Hoskinson
IPC分类号： H01S3/30 , H01S3/0943 , H01S3/095 , H01S3/22 , H01S3/07 , H01S3/223
CPC分类号： H01S3/0943 , H01S3/073 , H01S3/095 , H01S3/2207 , H01S3/2237
摘要： A laser and methods for providing a continuous wave output beam. The laser and method includes positioning a micro-plasma chip capable of creating micro-plasmas within a resonant cavity. A gas is input into the resonant cavity and flows around the micro-plasma chip. Micro-plasmas ignite and excite the gas to create metastables. The metastables are further excited by an optical pump having an energy sufficient to cause the metastables to lase.

18. 发明授权

US09620920B2 High pulse repetition rate gas discharge laser 有权
公开(公告)号：US09620920B2
公开(公告)日：2017-04-11
申请号：US12590307
申请日：2009-11-05
申请人： Walter D. Gillespie , Thomas D. Steiger , Richard C. Ujazdowski , William N. Partlo
发明人： Walter D. Gillespie , Thomas D. Steiger , Richard C. Ujazdowski , William N. Partlo
IPC分类号： H01S3/22 , H01S3/036 , H01S3/038
CPC分类号： H01S3/036 , H01S3/0384
摘要： A pulsed gas discharge laser operating at an output laser pulse repetition rate of greater than 4 kHz and a method of operating same is disclosed which may comprise a high voltage electrode having a longitudinal extent; a main insulator electrically insulating the high voltage electrode from a grounded gas discharge chamber; a preionizer longitudinally extending along at least a portion of the longitudinal extent of the high voltage electrode; a preionization shim integral with the electrode extending toward the preionizer. The preionizer may be formed integrally with the main insulator. The preionization shim may substantially cover the gap between the electrode and the preionizer. The apparatus and method may comprise an aerodynamic fairing attached to the high voltage electrode to present an aerodynamically smooth surface to the gas flow.

19. 发明授权

US09356414B2 Method and system for performing automatic gas refills for a gas laser 有权
标题翻译：对气体激光进行自动气体补充的方法和系统
公开(公告)号：US09356414B2
公开(公告)日：2016-05-31
申请号：US14585062
申请日：2014-12-29
申请人： Teledyne Instruments, Inc.
发明人： John Roy
IPC分类号： H01S3/22 , H01S3/036 , H01S3/225
CPC分类号： H01S3/036 , H01S3/225
摘要： An apparatus to automatically refill a gas laser is disclosed. The apparatus includes a computing device coupled to a memory. The memory storing instructions that when executed by the computing device cause the computing device to monitor a time elapsed since a last recorded gas refill and when a predetermined time interval is reached since the last recorded gas refill, effectuate a gas refill process to refill the gas laser with gas from a gas supply coupled to the gas laser by automatically controlling the gas laser and the gas supply; and upon completing the gas refill process, record a time stamp of the completed gas refill process. A method and system to automatically refill a gas laser also are disclosed.
摘要翻译：公开了一种自动重新填充气体激光器的装置。该装置包括耦合到存储器的计算装置。存储指令的存储器，当由计算装置执行时，使计算装置监视从上次记录的气体再填充以来经过的时间，并且当从最后记录的气体再填充到达预定的时间间隔时，执行气体补充处理以再填充气体通过自动控制气体激光器和气体供应，通过与气体激光器连接的气体供应气体进行激光; 在完成气体补充处理之后，记录完成的气体补充过程的时间戳。还公开了一种自动重新填充气体激光器的方法和系统。

20. 发明授权

US08908735B2 Laser system 有权
标题翻译：激光系统
公开(公告)号：US08908735B2
公开(公告)日：2014-12-09
申请号：US13231882
申请日：2011-09-13
申请人： Alexander I. Ershov , William N. Partlo , Daniel J. W. Brown , Igor V. Fomenkov
发明人： Alexander I. Ershov , William N. Partlo , Daniel J. W. Brown , Igor V. Fomenkov
IPC分类号： H01S3/22 , H01S3/225 , H01S3/08 , H01S3/00 , H01S3/23 , H01S3/083 , H01S3/10
CPC分类号： H01S3/225 , H01S3/005 , H01S3/0057 , H01S3/08004 , H01S3/08009 , H01S3/083 , H01S3/10092 , H01S3/2251 , H01S3/2258 , H01S3/2333 , H01S3/2383 , H01S2301/02
摘要： A method and apparatus may comprise a line narrowed pulsed excimer or molecular fluorine gas discharge laser system which may comprise a seed laser oscillator producing an output comprising a laser output light beam of pulses which may comprise a first gas discharge excimer or molecular fluorine laser chamber; a line narrowing module within a first oscillator cavity; a laser amplification stage containing an amplifying gain medium in a second gas discharge excimer or molecular fluorine laser chamber receiving the output of the seed laser oscillator and amplifying the output of the seed laser oscillator to form a laser system output comprising a laser output light beam of pulses, which may comprise a ring power amplification stage.
摘要翻译：一种方法和装置可以包括线变窄的脉冲准分子或分子氟气放电激光系统，其可以包括种子激光振荡器，其产生包括可以包括第一气体放电准分子或分子氟激光室的脉冲的激光输出光束的输出; 第一振荡器腔内的线窄模块; 在第二气体放电准分子或分子氟激光室中包含放大增益介质的激光放大级，其接收种子激光振荡器的输出并放大种子激光振荡器的输出，以形成激光系统输出，其包括激光输出光束脉冲，其可以包括环形功率放大级。

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