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公开(公告)号：US09585570B2
公开(公告)日：2017-03-07
申请号：US14306390
申请日：2014-06-17
发明人： Koichi Suzuki
IPC分类号： H01S3/04 , A61B5/00 , H01S3/13 , H01S3/092 , H01S3/131 , H01S3/16 , H01S3/106 , H01S3/115 , A61B5/145
CPC分类号： A61B5/0095 , A61B5/14542 , H01S3/0404 , H01S3/0407 , H01S3/042 , H01S3/092 , H01S3/106 , H01S3/115 , H01S3/1305 , H01S3/1317 , H01S3/1625 , H01S3/1633 , H01S3/1636
摘要： An object information acquiring apparatus is used which includes: a laser medium; a temperature controlling unit for controlling a temperature of the laser medium; an excitation unit for exciting the laser medium; a control unit for controlling the temperature controlling unit and the excitation unit; a probe for receiving acoustic waves that are generated when an object is irradiated with a laser beam from the laser medium; and a processing unit for acquiring characteristic information relating to the object from the acoustic waves, wherein the control unit does not operate the excitation unit until the temperature of the laser medium falls within a predetermined range.
摘要翻译： 使用的物体信息获取装置包括：激光介质; 温度控制单元，用于控制激光介质的温度; 用于激发激光介质的激励单元; 用于控制温度控制单元和激励单元的控制单元; 用于接收当用激光介质激光束照射物体时产生的声波的探针; 以及处理单元，用于从声波获取与物体相关的特性信息，其中，在激光介质的温度落在预定范围内之前，控制单元不操作激励单元。
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公开(公告)号：US20160301184A1
公开(公告)日：2016-10-13
申请号：US15190102
申请日：2016-06-22
申请人： Voxtel, Inc.
发明人： George Williams
CPC分类号： H01S3/094076 , H01S3/025 , H01S3/0401 , H01S3/0405 , H01S3/042 , H01S3/0604 , H01S3/0612 , H01S3/094038 , H01S3/094053 , H01S3/09408 , H01S3/09415 , H01S3/11 , H01S3/1115 , H01S3/1118 , H01S3/1124 , H01S3/113 , H01S3/115 , H01S3/117 , H01S3/121 , H01S3/1312 , H01S3/1317 , H01S3/1608 , H01S3/1618 , H01S3/1666
摘要： A method of operating a q-switch RE,XAB laser includes: providing a pump bias current to a pump source, the pump source directed to an RE:XAB gain medium, the RE:XAB gain medium within a resonator cavity, where X is selected from Ca, Lu, Yb, Nd, Sm, Eu, Gd, Ga, Tb, Dy, Ho, Er, and where RE is selected from Lu, Y, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Pr, Tm, Cr, Ho, with a bias current level below a lasing threshold of the RE:XAB gain medium; providing a pump pulse to the gain medium, the pump pulse of the lasing threshold of the RE:XAB gain medium, the pump pulse causing the RE:XAB gain medium to emit a laser pulse; and reducing the pump bias current to at least below the gain medium lasing threshold, the combination of the pump bias, the pump pulse, and the pump reduction having a current profile.
摘要翻译： 操作q开关RE，XAB激光器的方法包括：向泵浦源提供泵偏置电流，泵浦源指向RE：XAB增益介质，谐振腔内的RE：XAB增益介质，其中X为 选自Ca，Lu，Yb，Nd，Sm，Eu，Gd，Ga，Tb，Dy，Ho，Er，其中RE选自Lu，Y，Nd，Sm，Eu，Gd，Tb，Dy，Ho， Er，Pr，Tm，Cr，Ho，偏置电流水平低于RE：XAB增益介质的激光阈值; 向增益介质提供泵浦脉冲，RE：XAB增益介质的激光阈值的泵浦脉冲，引起RE：XAB增益介质的泵浦脉冲发射激光脉冲; 并且将泵偏置电流减小到至少低于增益介质激光阈值，泵偏压，泵脉冲和具有电流分布的泵减小的组合。
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23.发明授权公开(公告)号：US09362712B1
公开(公告)日：2016-06-07
申请号：US14812350
申请日：2015-07-29
CPC分类号： H01S3/04 , H01S3/0401 , H01S3/0408 , H01S3/13 , H01S3/1304 , H01S3/1305 , H01S3/1317 , H01S3/137 , H01S3/1392 , H01S3/1618 , H01S3/1653
摘要： Provided is a method and system for stabilizing a property of a first laser beam from a first laser in a vibration-free and cryogen free-manner. The method can include optically cooling a ytterbium-doped yttrium lithium fluoride (Yb:YLF) crystal using a second laser beam; coupling the crystal to a thermal coupling, wherein the thermal coupling is further coupled to a reference cavity to maintain a temperate of the reference cavity; directing a portion of the first laser beam through the reference cavity onto a photodetector to measure the property of the first laser beam; and stabilizing the first laser beam using a feedback control mechanism using the photodetector.
摘要翻译： 提供一种用于以无振动和无冷冻的方式稳定来自第一激光器的第一激光束的性质的方法和系统。 该方法可以包括使用第二激光束光学冷却掺杂镱的钇氟化锂（Yb：YLF）晶体; 将所述晶体耦合到热耦合，其中所述热耦合进一步耦合到参考腔以保持所述参考腔的温度; 将第一激光束的一部分引导通过参考腔到光电检测器上以测量第一激光束的性质; 以及使用所述光电检测器的反馈控制机构稳定所述第一激光束。
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公开(公告)号：US09343864B2
公开(公告)日：2016-05-17
申请号：US13984535
申请日：2012-02-09
申请人： Bruno Sfez
发明人： Bruno Sfez
IPC分类号： H01S3/067 , H01S3/063 , H01S3/16 , H01S3/042 , H01S3/0941 , H01S3/10 , H01S3/13 , H01S3/131 , H01S3/23
CPC分类号： H01S3/06754 , H01S3/042 , H01S3/063 , H01S3/0637 , H01S3/0941 , H01S3/10007 , H01S3/10053 , H01S3/1307 , H01S3/1317 , H01S3/1603 , H01S3/2308 , H01S3/2383
摘要： A planar optical waveguide amplifier includes an active optical waveguide (203) containing rare-earth ions embedded in a passive optical waveguide (202) that guides the pump power.
摘要翻译： 平面光波导放大器包括含有引入泵浦功率的无源光波导（202）中嵌入的稀土离子的有源光波导（203）。
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25.发明授权Serial servo system and method for controlling an optical path length and a repetition frequency of a mode-locked laser 有权用于控制锁模激光器的光路长度和重复频率的串行伺服系统和方法公开(公告)号：US09300109B2
公开(公告)日：2016-03-29
申请号：US14153224
申请日：2014-01-13
申请人： Raytheon Company
发明人： Kevin Knabe , Andrew N. Daniele , Victor Leyva
CPC分类号： H01S3/13 , H01S3/06791 , H01S3/1109 , H01S3/1305 , H01S3/1307 , H01S3/1317 , H01S3/136 , H01S3/139
摘要： A servo system includes multiple servo channels being driven by a common error signal. Each channel has a controller that receives an error signal and provides a drive signal to a driver. The servo channels are arranged serially, with a drive signal from one controller forming the error signal for a downstream controller. As a result, the downstream controller does not attempt to correct for phase error directly, but instead attempts to keep the upstream driver at or near its operational midpoint. The servo channels can be arranged in order of decreasing controller bandwidth, from fastest to slowest. In contrast with a parallel configuration, in which servo channels all simultaneously receive a common error signal, the serial configuration can allow each controller to use its full bandwidth, can eliminate crosstalk between servo channels, and can prevent saturation of upstream drive signals.
摘要翻译： 伺服系统包括由公共误差信号驱动的多个伺服通道。 每个通道具有控制器，其接收错误信号并向驱动器提供驱动信号。 伺服通道串联布置，来自一个控制器的驱动信号形成用于下游控制器的误差信号。 因此，下游控制器不会直接尝试纠正相位误差，而是试图将上游驱动器保持在其操作中点处或其附近。 可以按照从最快到最慢的控制器带宽降低顺序排列伺服通道。 与其中伺服通道同时接收公共误差信号的并行配置相反，串行配置可以允许每个控制器使用其全部带宽，可以消除伺服通道之间的串扰，并且可以防止上游驱动信号的饱和。
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公开(公告)号：US20150366460A1
公开(公告)日：2015-12-24
申请号：US14737753
申请日：2015-06-12
发明人： Minoru Ohkoba , Shigeru Ichihara
IPC分类号： A61B5/00
CPC分类号： A61B5/0095 , A61B5/7203 , H01S3/0805 , H01S3/092 , H01S3/115 , H01S3/1317 , H01S3/1611 , H01S3/1623 , H01S3/1625 , H01S3/1633 , H01S3/1636 , H01S3/1643
摘要： Provided is an object information acquiring apparatus, comprising: a laser light source configured to irradiate laser light onto an object; a detector configured to detect a part of the laser light from the laser light source; a receiver configured to receive an acoustic wave that propagate from the object, based on the irradiation of the laser light; and an acquisition unit configured to acquire information relating to the object, based on a reception result of the receiver and a detection result of the detector, wherein the detector detects anomalous emission from the laser light source.
摘要翻译： 本发明提供一种对象信息取得装置，其特征在于，包括：激光源，被配置为将激光照射到物体上; 检测器，被配置为检测来自激光光源的激光的一部分; 接收器，被配置为基于激光的照射接收从物体传播的声波; 以及获取单元，被配置为基于所述接收机的接收结果和所述检测器的检测结果来获取与所述对象有关的信息，其中所述检测器检测来自所述激光源的异常发射。
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27.发明申请公开(公告)号：US20150366459A1
公开(公告)日：2015-12-24
申请号：US14736381
申请日：2015-06-11
发明人： Minoru Ohkoba , Shigeru Ichihara
CPC分类号： A61B5/0095 , A61B5/7203 , H01S3/0805 , H01S3/092 , H01S3/115 , H01S3/1317 , H01S3/1611 , H01S3/1623 , H01S3/1625 , H01S3/1633 , H01S3/1636 , H01S3/1643
摘要： Provided is an object information acquiring apparatus provided with: a laser light source; a detection unit that detects a portion of laser light emitted from the laser light source; a determination unit that determines whether or not abnormal emission is contained in the laser light, based on a detection result of the detection unit; a radiation unit that radiates the laser light onto an object; a reception unit that receives acoustic waves that propagate from the object, based on radiation of the laser light; an acquisition unit that acquires information relating to the object, based on a reception result of the reception unit; and a control unit that controls output of the laser light, based on a determination result of the determination unit.
摘要翻译： 本发明提供一种物体信息取得装置，具备：激光光源; 检测单元，其检测从所述激光光源发射的激光的一部分; 确定单元，其基于所述检测单元的检测结果来确定所述激光中是否包含异常发射; 将激光照射到物体上的辐射单元; 接收单元，其基于所述激光的辐射接收从所述物体传播的声波; 获取单元，其基于所述接收单元的接收结果来获取与所述对象有关的信息; 以及控制单元，其基于所述确定单元的确定结果来控制所述激光的输出。
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公开(公告)号：US20140219299A1
公开(公告)日：2014-08-07
申请号：US13758904
申请日：2013-02-04
CPC分类号： H01S3/1024 , H01S3/0627 , H01S3/06754 , H01S3/09408 , H01S3/113 , H01S3/1301 , H01S3/1312 , H01S3/1317 , H01S5/042
摘要： Seed pulse generators for fiber amplifier systems include a seed pump controller coupled to a seed pump laser diode. A photodetector is situated to detect seed pulse generation, and is coupled to the seed pump controller so that seed pumping is decreased upon pulse detection. For a laser diode pump source, a pump current can be pulsed to produce a seed pulse and then decreased to a bias level such as a DC bias current that is less than a pump laser threshold current. Single seed pulses can be generated with reduced pulse jitter.
摘要翻译： 用于光纤放大器系统的种子脉冲发生器包括耦合到种子泵激光二极管的种子泵控制器。 光电检测器被设置为检测种子脉冲的产生，并且耦合到种子泵控制器，使得在脉冲检测时种子泵送减少。 对于激光二极管泵浦源，泵浦电流可以被脉冲以产生种子脉冲，然后降低到偏置电平，例如小于泵激光器阈值电流的DC偏置电流。 可以减少脉冲抖动产生单个种子脉冲。
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29.发明授权公开(公告)号：US07804876B2
公开(公告)日：2010-09-28
申请号：US12055408
申请日：2008-03-26
IPC分类号： H01S3/22
CPC分类号： H01S3/227 , H01S3/036 , H01S3/06741 , H01S3/094057 , H01S3/109 , H01S3/1106 , H01S3/1317
摘要： In one embodiment, a laser oscillator is provided comprising an optical cavity, the optical cavity including a gain medium including an alkali vapor and a buffer gas, the buffer gas including 3He gas, wherein if 4He gas is also present in the buffer gas, the ratio of the concentration of the 3He gas to the 4He gas is greater than 1.37×10−6. Additionally, an optical excitation source is provided. Furthermore, the laser oscillator is capable of outputting radiation at a first frequency. In another embodiment, an apparatus is provided comprising a gain medium including an alkali vapor and a buffer gas including 3He gas, wherein if 4He gas is also present in the buffer gas, the ratio of the concentration of the 3He gas to the 4He gas is greater than 1.37×10−6. Other embodiments are also disclosed.
摘要翻译： 在一个实施例中，提供了包括光学腔的激光振荡器，所述光学腔包括包括碱性蒸汽和缓冲气体的增益介质，所述缓冲气体包括3He气体，其中如果4He气体也存在于缓冲气体中， 3He气体与4He气体的浓度比大于1.37×10-6。 另外，提供光激励源。 此外，激光振荡器能够以第一频率输出辐射。 在另一个实施例中，提供了一种装置，其包括包括碱蒸气和包括3He气体的缓冲气体的增益介质，其中如果4He气体也存在于缓冲气体中，则3He气体与4He气体的浓度之比为 大于1.37×10-6。 还公开了其他实施例。
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公开(公告)号：US20100080254A1
公开(公告)日：2010-04-01
申请号：US12562394
申请日：2009-09-18
CPC分类号： H01S3/042 , H01S3/0405 , H01S3/0604 , H01S3/0612 , H01S3/0621 , H01S3/1317 , H01S3/1618 , H01S3/1643
摘要： The systems and methods herein provide for tuning an optical characteristic of a gain medium for a laser system. For example, a system may include a thermal tuner that dynamically controls the temperature of the gain medium to compensate for thermal mechanical distortions of the gain medium caused by laser energy in the gain medium. In doing so, the tuner may dynamically adjust a coolant temperature and/or a coolant flow rate proximate to the gain medium. Accordingly, heat is dynamically removed from the gain medium so as to adjust for optical distortions in the gain medium. Such a dynamic heat removal may provide a laser system designer with the ability to generate laser energy with controllable predetermined optical wavefronts (e.g., a flat optical wavefront).
摘要翻译： 这里的系统和方法提供了用于调谐用于激光系统的增益介质的光学特性。 例如，系统可以包括热调谐器，其动态地控制增益介质的温度以补偿由增益介质中的激光能量引起的增益介质的热机械失真。 在这样做时，调谐器可以动态地调节靠近增益介质的冷却剂温度和/或冷却剂流速。 因此，从增益介质中动态地去除热量，以便调整增益介质中的光学失真。 这种动态除热可以为激光系统设计者提供产生具有可控的预定光波前（例如，平坦光波前）的激光能量的能力。
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