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91.发明授权Method of emitting on a specific wavelength Fraunhofer line using a neodymium doped laser transmitter 失效使用钕掺杂激光发射器在特定波长发射Fraunhofer线的方法
公开(公告)号：US5181212A
公开(公告)日：1993-01-19
申请号：US816514
申请日：1991-12-31
申请人： Victor L. Moberg
发明人： Victor L. Moberg
CPC分类号： H01S3/042 , H01S3/131 , H01S3/16 , H01S3/30 , H01S3/1611
摘要： A method of emitting on a specific wavelength Fraunhofer line of peak seawater transmission and minimum solar radiation is disclosed. This method includes the steps of emitting at least on a specific wavelength of an infrared transition line from a neodymium gain element in an optical resonator; frequency tripling the infrared line from the resonator to a specific ultraviolet wavelength in a frequency multiplier; and Raman down shifting the specific ultraviolet wavelength a predetermined degree by a predetermined number of Stokes shifts in a predetermined medium in a Raman shifter to produce a high peak-power output at the specific wavelength Fraunhofer line.
摘要翻译： 公开了在特定波长发射峰值海水传输和最小太阳辐射的弗劳恩霍夫线的方法。 该方法包括以下步骤：至少在光谐振器中从钕增益元件发射红外线的特定波长; 在谐振器中将红外线的倍频倍频到倍频器中的特定紫外线波长; 并且拉曼在特定波长弗劳恩霍夫线上将特定紫外线波长在预定介质中的预定数量的拉曼移位器中以预定数量的斯托克斯位移向下移位，以产生高峰值功率输出。
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92.发明授权Control of output energy of a pulsed light source comprising a gas discharge laser 失效控制包括气体放电激光器的脉冲光源的输出能量
公开(公告)号：US5134273A
公开(公告)日：1992-07-28
申请号：US583940
申请日：1990-09-18
申请人： Koichi Wani , Mutsumi Mimasu , Tadaaki Miki , Yasuhiro Shimada
发明人： Koichi Wani , Mutsumi Mimasu , Tadaaki Miki , Yasuhiro Shimada
CPC分类号： H01S3/134 , B23K26/702 , H01S3/131
摘要： A pulsed light source comprising a laser for emitting light in pulse form in response to an electric power from a power supply which is changeable in accordance with a control signal from an external circuit and a photodetector responsive to the light from the laser so as to produce an electric signal corresponding to the intensity of the reception light. The output signal of the photodetector is supplied to a comparator so as to compare the electric signal therefrom with a reference signal to output a signal proportional to the difference between the electric signal and the reference signal. In response to the output signal of the comparator, a control circuit produces the control signal to be supplied to the power supply by adding the output signal of the comparator to a predetermined signal to control the electric power outputted from the power supply to the laser.
摘要翻译： 一种脉冲光源，包括用于响应来自电源的电力发射脉冲形式的激光，所述电源可根据来自外部电路的控制信号而变化，以及响应于来自激光的光的光检测器，以产生 对应于接收光的强度的电信号。 光电检测器的输出信号被提供给比较器，以将其电信号与参考信号进行比较，以输出与电信号和参考信号之差成比例的信号。 响应于比较器的输出信号，控制电路通过将比较器的输出信号与预定信号相加来产生提供给电源的控制信号，以控制从激光器的电源输出的电力。
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公开(公告)号：US5088095A
公开(公告)日：1992-02-11
申请号：US648713
申请日：1991-01-31
申请人： Martin Zirngibl
发明人： Martin Zirngibl
CPC分类号： H04B10/296 , H01S3/1302 , H01S3/083 , H01S3/131
摘要： In this invention an optical fiber doped with a rare earth element and coupled to be pumped with a laser is coupled to an optical feedback loop. The feedback loop couples the output signal of the fiber amplifier to the input of the fiber amplifier. A narrow bandwidth filter coupled to the feedback loop allows a selected wavelength of the amplified spontaneous emission to pass from the output of the fiber amplifier to the input of the fiber amplifier. The feedback signal has a wavelength which is different from that of the pump signal and the wavelengths of the signals to be amplified. In operation, when bursts of optical signals from at least two discrete word or frequency division multiplexed channels are amplified in the fiber amplifier, the undesired fluctuations of gain of the output signals normally due to transient saturation of the erbium-doped filter amplifier are substantially eliminated.
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公开(公告)号：US4408329A
公开(公告)日：1983-10-04
申请号：US965755
申请日：1978-12-04
申请人： Gerald D. Ferguson
发明人： Gerald D. Ferguson
CPC分类号： H01S3/109 , H01S3/131 , H01S3/08054 , H01S3/08059 , H01S3/0813 , H01S3/115
摘要： A laser device for generating frequency-doubled laser pulses at maximum eciency. A laser rod is optically pumped to radiate unpolarized light at 1.064.mu. wavelength for transmission within a ring-type resonator defined by a flat mirror and a turning prism. The light from one end of the rod is linearly polarized by a beam splitter into two parallel beams of orthogonal components which are transmitted through an 0.532.mu. output mirror, a frequency doubler phase matched for one component, and a Q-switch, to the turning prism for return along the beam of the other component to the beamsplitter. The output mirror, doubler and Q-switch are substantially ineffective during the pumping cycle, and because the component beam axes are reversed, the light does not return to the rod for stimulating light emission. After peak level pumping, however, the Q-switch is biased to rotate each component one quarter wavelength and return the components to combine and reenter the rod for stimulated light emission. The frequency doubler, now receiving high power radiation, transforms a portion of the returning 1.064.mu. component to a 0.532.mu. component which is then reflected out of the resonator by the output mirror.
摘要翻译： 一种用于以最大效率产生倍频激光脉冲的激光装置。 激光棒被光泵浦以辐射1.064μm波长的非偏振光以在由平面镜和转向棱镜限定的环型谐振器内传输。 来自杆的一端的光由分束器线性偏振成两个平行的正交分量束，其通过0.532μm输出反射镜传输，一个分量匹配的倍频相和一个Q开关，转向 棱镜用于沿着另一部件的光束返回到分束器。 输出反射镜，倍增器和Q开关在泵送循环期间基本上无效，并且由于分量光束轴反转，所以光不会返回到杆以刺激发光。 然而，在峰值电平泵浦之后，Q开关被偏置以使每个组件旋转四分之一波长并返回组件以组合并重新进入用于受激发光的棒。 现在接收高功率辐射的倍频器将返回的1.064μs分量的一部分转换成0.532μ的分量，然后由输出镜反射出谐振器。
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95.发明授权System for measuring the radiation power of power-modulated transmitters, in particular of lasers 失效用于测量功率调制发射机，特别是激光器的辐射功率的系统
公开(公告)号：US4344172A
公开(公告)日：1982-08-10
申请号：US126632
申请日：1980-03-03
申请人： Gerhard Busse
发明人： Gerhard Busse
CPC分类号： G01K17/003 , G01J1/4257 , G01J5/38 , H01S3/131
摘要： A system for measuring the radiation power of power-modulated transmitters, in particular of lasers, includes an opto-acoustical converter converting the radiation modulation into gas-pressure modulation. The components of the opto-acoustical converter disposed in the radiation path are virtually completely transparent or reflecting for the radiation to be measured.
摘要翻译： 用于测量功率调制发射机，特别是激光器的辐射功率的系统包括将辐射调制转换成气体压力调制的光声转换器。 设置在辐射路径中的光声转换器的部件实际上是完全透明的或反射用于被测量的辐射。
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96.发明授权公开(公告)号：US12088062B1
公开(公告)日：2024-09-10
申请号：US18656709
申请日：2024-05-07
发明人： Jong Pil La , Ji Eun Choi
CPC分类号： H01S5/0687 , H01S3/0405 , H01S3/10015 , H01S3/1305 , H01S3/131 , H01S5/0064 , H01S5/02438 , H01S5/14
摘要： A laser generation apparatus includes a light source making oscillate a laser having a frequency based on the amount of current applied thereto, a splitter ramifying a laser incident thereon at a preset ratio, an interference system receiving the ramified laser, generating an interference signal by ramifying a laser incident thereon, and measuring the phase of a laser oscillated, a temperature adjustment unit uniformly maintaining a temperature of a part of the interference system, an error integrator receiving a signal that has undergone the interference system and accumulating a phase error occurred, a phase error detection unit detecting a phase difference between the signal of the error integrator and an offset current value, a driving driver applying a current to the light source, and a control unit controlling an operation of each component and controlling the driving driver based on results of the detection of the phase error detection unit.
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公开(公告)号：US20230369821A1
公开(公告)日：2023-11-16
申请号：US18297719
申请日：2023-04-10
CPC分类号： H01S3/102 , H01S3/10069 , H01S3/106 , H01S3/1305 , H01S3/131
摘要： Disclosed are system and methods for a laser system comprising at least one laser, a processor, and a user interface. The processor can receive a range for at least one setting of the at least one laser that the at least one laser can operate within. The processor can further determine a proposed updated value for the at least one setting and determine that the proposed updated value is within the range. An indication of the proposed updated value and an option for a user to accept or reject the proposed updated value can be provided on a user interface. Responsive to an acceptance the at least one setting can be adjusted based on the proposed updated value. Responsive to no rejection within a predetermined period of time, the processor can cause the at least one setting to be adjusted or cancel adjustment of the at least one setting.
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98.发明授权公开(公告)号：US11721948B2
公开(公告)日：2023-08-08
申请号：US17380309
申请日：2021-07-20
发明人： Masahiro Ueno , Meishin Chin , Shoko Tatsumi , Takashi Sakamoto , Yuzo Sasaki , Seiji Toyoda , Yuichi Akage , Joji Yamaguchi , Tadashi Sakamoto
CPC分类号： H01S3/131 , H01S3/08009 , H01S3/107 , H01S3/10007 , H01S3/10069 , H01S3/136 , H01S5/0617
摘要： A swept light source of the present invention keeps a coherence length of an output beam long over an entire sweep wavelength range. A gain of a gain medium is changed with time in response to a wavelength sweep and the coherence length is kept maximum. The gain of the gain medium is kept close to a lasing threshold and an unsaturated gain range of the gain medium is narrowed over the entire sweep wavelength range. An SOA current waveform data acquiring method of driving while keeping the coherence length long, a novel coherence length measuring method, and an optical deflector suitable for the swept light source are also disclosed.
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公开(公告)号：US20230208093A1
公开(公告)日：2023-06-29
申请号：US18113600
申请日：2023-02-23
CPC分类号： H01S3/131 , G02B26/0833 , G02B26/10 , H01S3/11 , G02B27/0172
摘要： Technologies pertaining to accounting for pulse history effects are described herein. In connection with accounting for pulse history effects, an amount of time between a first current pulse and a second current pulse that are to be transmitted to a pulsed laser is determined. Based upon such an amount of time, a determination is made as to whether a porch pulse is to be prepended to the second current pulse. When the porch pulse is to be prepended to the second current pulse, an amplitude and duration of the porch pulse are computed based upon the amount of time. The porch pulse is transmitted to the pulsed laser immediately followed by the second current pulse, wherein the porch pulse pre-charges the pulsed laser for emitting a pulse of light based upon the second current pulse.
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公开(公告)号：US20150351209A1
公开(公告)日：2015-12-03
申请号：US14807875
申请日：2015-07-23
申请人： Gigaphoton Inc.
CPC分类号： H05G2/008 , H01S3/02 , H01S3/094026 , H01S3/10061 , H01S3/1106 , H01S3/131 , H01S3/1636 , H01S3/1643 , H01S3/2232 , H01S3/2316 , H01S3/2383 , H05G2/003 , H05G2/005
摘要： A system includes a chamber, a laser beam apparatus configured to generate a laser beam to be introduced into the chamber, a laser controller for the laser beam apparatus to control at least a beam intensity and an output timing of the laser beam, and a target supply unit configured to supply a target material into the chamber, the target material being irradiated with the laser beam for generating extreme ultraviolet light.
摘要翻译： 一种系统，包括：室，激光束装置，被配置为产生要被引入到所述腔室中的激光束;激光控制器，用于激光束装置至少控制激光束的光束强度和输出定时;以及目标 供给单元，被配置为将目标材料供应到所述室中，所述目标材料被所述激光束照射以产生极紫外光。
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