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51. 发明授权

US09240668B2 Method for controlling wavelength tunable laser, and wavelength tunable laser 有权
标题翻译：波长可调激光器和波长可调激光器的控制方法
公开(公告)号：US09240668B2
公开(公告)日：2016-01-19
申请号：US14553572
申请日：2014-11-25
申请人： Sumitomo Electric Device Innovations, Inc.
发明人： Mitsuyoshi Miyata
IPC分类号： H01S3/106 , H01S3/10 , H01S3/102
CPC分类号： H01S3/106 , H01S3/10015 , H01S3/1003 , H01S3/1028 , H01S3/1062 , H01S5/0265 , H01S5/0612 , H01S5/06256 , H01S5/06258 , H01S5/0687 , H01S5/1209 , H01S5/1212
摘要： A lasing wavelength is controlled so that a wavelength detection result becomes a first target value; selection is made to select either a step of calculating a second target value as a wavelength detection result with a shift of the lasing wavelength, or a step of calculating a third control value of a wavelength characteristic of an etalon for letting a laser lase at a wavelength with a shift of the lasing wavelength; in the former step, the lasing wavelength is controlled so that the wavelength detection result becomes the second target value; in the latter step, the lasing wavelength is controlled so that the wavelength detection result becomes the first target value.
摘要翻译：控制激光波长使得波长检测结果成为第一目标值; 进行选择，以选择计算第二目标值的步骤作为具有激光波长的偏移的波长检测结果，或者计算用于激光激光的标准具的波长特性的第三控制值的步骤波长与激光波长的移动; 在前一步骤中，控制激光波长使得波长检测结果变为第二目标值; 在后一步骤中，控制激光波长，使得波长检测结果成为第一目标值。

52. 发明授权

US09190802B2 Optical fiber laser equipment 有权
标题翻译：光纤激光设备
公开(公告)号：US09190802B2
公开(公告)日：2015-11-17
申请号：US14598691
申请日：2015-01-16
申请人： FURUKAWA ELECTRIC CO., LTD.
发明人： Taizo Miyato , Kosuke Kashiwagi , Yoshihiro Emori , Akira Fujisaki , Koji Kajiwara
IPC分类号： H01S3/30 , H01S3/102 , H01S3/067 , H01S3/0941 , H01S3/094 , H01S3/16 , H01S3/13
CPC分类号： H01S3/1022 , H01S3/067 , H01S3/06716 , H01S3/06733 , H01S3/0675 , H01S3/06754 , H01S3/094003 , H01S3/094053 , H01S3/0941 , H01S3/09415 , H01S3/1305 , H01S3/1312 , H01S3/1608 , H01S3/1618 , H01S3/2391
摘要： An optical fiber laser device includes optical reflectors making an invisible laser light from an amplification optical fiber; a light source outputting a visible light; an introduction unit outputting the laser light input to a first input terminal from a first output terminal mainly, outputting the visible light input to a second input terminal from the first output terminal mainly, inputting the visible light output by the light source connected to the second input terminal and introducing the visible light to the amplification optical fiber or a output optical fiber via the first output terminal; an optical multiplexer/demultiplexer outputting the visible light to the introduction unit, and outputting a leaking return light input from a side of the introduction unit; and a controller outputting the visible light from the output optical fiber in a case of determining a position at which the laser light will be irradiated.
摘要翻译：光纤激光器件包括从放大光纤制造不可见激光的光反射器; 输出可见光的光源; 导入部主要从第一输出端子输出输入到第一输入端子的激光，主要从第一输出端子输出输入到第二输入端子的可见光，输入由连接到第二输出端子的光源输出的可见光输入端子，并通过第一输出端子将可见光引入放大光纤或输出光纤; 将所述可见光输出到所述引入单元，并输出从所述导入单元的一侧输入的泄漏返回光的光复用器/解复用器; 以及在确定激光将被照射的位置的情况下从输出光纤输出可见光的控制器。

53. 发明授权

US09048622B2 High power pulsed light generation device 有权
标题翻译：大功率脉冲光发生装置
公开(公告)号：US09048622B2
公开(公告)日：2015-06-02
申请号：US14158250
申请日：2014-01-17
申请人： FUJIKURA LTD.
发明人： Michihiro Nakai
IPC分类号： H01S3/094 , H01S3/102 , H01S3/23 , H01S5/042 , H01S3/0941 , H01S3/067 , H01S3/16 , B23K26/00
CPC分类号： H01S3/094076 , B23K26/0622 , H01S3/06754 , H01S3/0941 , H01S3/1024 , H01S3/1618 , H01S3/2308 , H01S5/042 , H01S5/0428
摘要： A high power pulsed light generation device includes: a master clock generator that generates a master signal; an optical oscillator that generates a pulsed light synchronized with the master clock signal; an optical amplifier that amplifies the pulsed light emitted from the optical oscillator to output a high power pulsed light; a pump semiconductor laser that generates a pulsed light for pumping the optical amplifier; a driving unit that drives the pump semiconductor laser by a pulsed driving current synchronized with the master clock signal; and a control unit which controls the driving unit and controls a gain of the optical amplifier for each pulse by changing a pulse width of the pulsed drive current from driving unit so as to change the pulse width of the pumping pulsed light.
摘要翻译：高功率脉冲光发生装置包括：主时钟发生器，其产生主信号; 产生与主时钟信号同步的脉冲光的光学振荡器; 光放大器，其放大从所述光振荡器发射的脉冲光以输出高功率脉冲光; 泵浦半导体激光器，其产生用于泵浦光放大器的脉冲光; 驱动单元，其通过与所述主时钟信号同步的脉冲驱动电流来驱动所述泵浦半导体激光器; 以及控制单元，其通过改变来自驱动单元的脉冲驱动电流的脉冲宽度来控制每个脉冲的光放大器的增益，从而改变泵浦脉冲光的脉冲宽度。

54. 发明授权

US08937762B2 Level control circuit, level control method, and level control system 有权
标题翻译：液位控制电路，液位控制方式和液位控制系统
公开(公告)号：US08937762B2
公开(公告)日：2015-01-20
申请号：US13450577
申请日：2012-04-19
申请人： Yutaka Kai , Setsuo Yoshida , Taku Yoshida , Keisuke Harada
发明人： Yutaka Kai , Setsuo Yoshida , Taku Yoshida , Keisuke Harada
IPC分类号： H01S3/102
CPC分类号： H04B10/2942 , H04J14/0221
摘要： A level control circuit that generates output signal for level control includes: a control information storage that stores control information corresponding to a signal level, a control information circuit that outputs the output signal for level control corresponding to the signal level of a first input signal based on the control information stored in the control information storage; and an information update circuit that updates the control information of the control information storage according to the signal level of a second input signal.
摘要翻译：产生电平控制的输出信号的电平控制电路包括：存储对应于信号电平的控制信息的控制信息存储器，输出与第一输入信号的信号电平对应的电平控制的输出信号的控制信息电路，关于存储在控制信息存储器中的控制信息; 以及信息更新电路，其根据第二输入信号的信号电平更新控制信息存储器的控制信息。

55. 发明授权

US08934509B2 Q-switched oscillator seed-source for MOPA laser illuminator method and apparatus 有权
标题翻译：用于MOPA激光照明器的Q开关振荡器种子源方法和装置
公开(公告)号：US08934509B2
公开(公告)日：2015-01-13
申请号：US12952190
申请日：2010-11-22
申请人： Matthias P. Savage-Leuchs , Christian E. Dilley , Charles A. Lemaire
发明人： Matthias P. Savage-Leuchs , Christian E. Dilley , Charles A. Lemaire
IPC分类号： H01S3/11 , H01S3/067 , H01S3/102 , H01S5/14 , H01S3/23 , H01S3/115 , H01S3/127 , H01S3/113 , H01S3/094
CPC分类号： H01S3/06758 , B60Q1/0076 , H01S3/06704 , H01S3/06712 , H01S3/06716 , H01S3/0675 , H01S3/06791 , H01S3/094003 , H01S3/094011 , H01S3/094053 , H01S3/0941 , H01S3/1022 , H01S3/113 , H01S3/115 , H01S3/127 , H01S3/2316 , H01S5/146 , H01S2301/03
摘要： An apparatus, method and system that uses a Q-switched laser or a Q-seed source for a seed pulse signal having a controlled high-dynamic-range amplitude that avoids and/or compensates for pulse steepening in high-gain optical-fiber and/or optical-rod amplification of optical pulses. Optionally, the optical output is used for LIDAR or illumination purposes (e.g., for image acquisition). In some embodiments, well-controlled pulse shapes are obtained having a wide dynamic range, long duration, and not-too-narrow linewidth. In some embodiments, upon the opening of a Q-switch in an optical cavity having a gain medium, the amplification builds relatively slowly, wherein each round trip through the gain medium increases the amplitude of the optical pulse. Other embodiments use quasi-Q-switch devices or a plurality of amplitude modulators to obtain Q-seed pulses. These configurations provide optical pulses having wide dynamic ranges that ameliorate problems of pulse steepening, non-linear spectral broadening and the like in very-high-power MOPA devices.
摘要翻译：一种使用Q开关激光器或Q种子源用于具有受控的高动态范围幅度的种子脉冲信号的装置，方法和系统，其避免和/或补偿高增益光纤中的脉冲陡峭，以及 /或光学脉冲的光棒放大。可选地，光输出用于LIDAR或照明目的（例如，用于图像采集）。在一些实施例中，获得具有宽动态范围，长持续时间和不太窄线宽的良好控制的脉冲形状。在一些实施例中，在具有增益介质的光学腔中打开Q开关后，放大相对缓慢地建立，其中通过增益介质的每次往返都增加了光脉冲的幅度。其他实施例使用准Q开关器件或多个幅度调制器来获得Q-种子脉冲。这些配置提供具有宽动态范围的光脉冲，其可改善非常高功率的MOPA器件中的脉冲陡峭度，非线性光谱变宽等问题。

56. 发明授权

US08896779B2 Laser oscillation device 有权
标题翻译：激光振荡装置
公开(公告)号：US08896779B2
公开(公告)日：2014-11-25
申请号：US13389101
申请日：2010-08-05
申请人： Mi-Yun Jeong , Jeong-Weon Wu
发明人： Mi-Yun Jeong , Jeong-Weon Wu
IPC分类号： G02F1/1343 , H01S3/16 , H01S3/102 , H01S3/08
CPC分类号： H01S3/1686 , H01S3/08081 , H01S3/08086 , H01S3/102
摘要： Provided is a laser oscillation device. A second substrate is disposed above a first substrate in such a manner that a wedge cell is formed between the first and second substrates. A liquid crystal layer is formed by two or more liquid crystals which are injected into the wedge cell and have different pitches. Therefore, a consecutive wavelength-variable lasing process is possible in a certain wavelength region.
摘要翻译：提供了一种激光振荡装置。第二基板设置在第一基板上方，使得楔形单元形成在第一和第二基板之间。液晶层由注入楔形电池并具有不同间距的两个或多个液晶形成。因此，在一定波长范围内可以进行连续波长可变的激光加工。

57. 发明授权

US08804230B2 Light amplifier and laser processing device 有权
标题翻译：光放大器和激光加工装置
公开(公告)号：US08804230B2
公开(公告)日：2014-08-12
申请号：US13468357
申请日：2012-05-10
申请人： Tatsuo Ogaki
发明人： Tatsuo Ogaki
IPC分类号： H01S3/102
CPC分类号： H01S3/06754 , H01S3/06758 , H01S3/094007 , H01S3/10069 , H01S3/1301 , H01S3/1306 , H01S3/1618 , H01S3/2308
摘要： A laser processing device includes a light amplifying fiber, a seed semiconductor laser (LD) for pulsing seed light multiple times during an emission period, an excitation LD for generating the exciting light of power at a first level during a non-emission period immediately before the emission period and generating the exciting light of power at a second level higher than the first level during the emission period, a light receiving element and a peak value detector for detecting power of an output light pulse which is output from the light amplifying fiber, and a control device. The control device controls the power of the exciting light of the non-emission period based on the detected value from the peak value detector to cause the power of first output light pulses which are generated during the emission period to be the same as the power of final output light pulses.
摘要翻译：激光加工装置包括光放大光纤，用于在发光周期期间多次脉冲种子光的种子半导体激光器（LD），用于在紧接在之前的非发光期间产生第一电平的激励光的激励LD 发光周期，并且在发光期间产生高于第一电平的第二电平的激发光;光接收元件和峰值检测器，用于检测从光放大光纤输出的输出光脉冲的功率，和控制装置。控制装置基于来自峰值检测器的检测值来控制非发光期间的激发光的功率，使得在发光期间产生的第一输出光脉冲的功率与最终输出光脉冲。

58. 发明授权

US08310749B2 Ultra-short high-power light pulse source 有权
标题翻译：超短大功率光源脉冲源
公开(公告)号：US08310749B2
公开(公告)日：2012-11-13
申请号：US12664754
申请日：2008-06-13
申请人： Eric Mottay , Patrick Georges , Yoann Zaouter , Marc Hanna , Dimitris Papadopoulos , Frederic Druon , Eric Cormier
发明人： Eric Mottay , Patrick Georges , Yoann Zaouter , Marc Hanna , Dimitris Papadopoulos , Frederic Druon , Eric Cormier
IPC分类号： H04B10/17 , H01S3/102
CPC分类号： H01S3/0057 , H01S3/067 , H01S3/094003
摘要： An ultra-short high-power light pulse source including a first laser pump source (1), a mode-locked laser oscillator (2), a second laser pump source (4), a waveguide (6) capable of inserting spectral phases into the light pulses, and a compressor (8) capable of generating predetermined spectral phases into the light pulses. The waveguide (6) includes an element capable of compensating the predetermined spectral phases generated at least by the compressor (8), the second laser pump source (4) being capable of delivering a second pump light flow (5) having a power PL such that the spectral phases generated by the wave guide (6) are opposed or quasi opposed to the predetermined spectral phases generated by the compressor (8) in order to generate compressed ultra-short light pulses (9) at the output of the compressor (8) with a planar or quasi planar spectral phase.
摘要翻译：一种超短大功率光脉冲源，包括第一激光泵浦源（1），锁模激光振荡器（2），第二激光泵浦源（4），能够将光谱相插入的波导（6）光脉冲和能够在光脉冲中产生预定光谱相位的压缩器（8）。波导（6）包括能够补偿至少由压缩机（8）产生的预定频谱相位的元件，第二激光泵浦源（4）能够输送具有功率PL的第二泵浦光流（5）由波导（6）产生的频谱相位相对于或者与由压缩机（8）产生的预定频谱相位相反，以便在压缩机（8）的输出处产生压缩的超短光脉冲（9））具有平面或准平面光谱相位。

59. 发明申请

US20110194173A1 METHOD AND DEVICE FOR SPECTRAL CONTROL IN FREQUENCY CONVERSION LASER AMPLIFIERS 有权
标题翻译：频率转换激光放大器中频谱控制的方法和装置
公开(公告)号：US20110194173A1
公开(公告)日：2011-08-11
申请号：US12373049
申请日：2007-07-11
申请人： Franck Falcoz , Emmanuel Marquis
发明人： Franck Falcoz , Emmanuel Marquis
IPC分类号： H01S3/102
CPC分类号： H01S3/1317 , H01S3/0057 , H01S3/042 , H01S3/10007 , H01S3/137 , H01S3/1625 , H01S3/1636 , H01S3/2308 , H01S3/2316 , H01S3/2325 , H01S2301/06 , H01S2301/08
摘要： The invention relates to a method of spectral control in a frequency-shift laser chain for producing ultra-short pulses and comprising at least two laser-crystal amplifier stages, for cooling the crystal of one of the amplifier stages of the chain.
摘要翻译：本发明涉及一种用于产生超短脉冲的频移激光链中的光谱控制方法，包括至少两个激光晶体放大器级，用于冷却链中放大级之一的晶体。

60. 发明申请

US20100177797A1 Apparatus and Method for Laser Processing a Material 审中-公开
标题翻译：激光加工材料的设备和方法
公开(公告)号：US20100177797A1
公开(公告)日：2010-07-15
申请号：US12668396
申请日：2008-07-09
申请人： Andrew Paul Appleyard , Duncan John William Walker , Roland Neal
发明人： Andrew Paul Appleyard , Duncan John William Walker , Roland Neal
IPC分类号： H01S3/102 , H01S3/0941
摘要： Apparatus for laser processing a material (8) with optical radiation (T), which apparatus comprises a seed laser (1) pumped by a seed pump (2), an amplifier (3) pumped by an amplifier pump (4), a controller (5), and a scanner (6), wherein the controller (5) controls the seed pump (2), the amplifier pump (4) and the scanner (6) in synchronism such that optical pulses (10) emitted by the seed laser (1) are propagated through the amplifier (3) and directed to the material (8) by the scanner (6), the apparatus being characterized in that controller (5) controls the amplifier pump (4) to cause the amplifier (3) to act as an optical attenuator when the optical radiation (7) is in a first power range, and as an optical amplifier when the output power is in a second power range.
摘要翻译：用于用光学辐射（T）激光处理材料（8）的装置，该装置包括由种子泵（2）泵送的种子激光器（1），由放大器泵（4）泵送的放大器（3），控制器（5）和扫描器（6），其中控制器（5）同步地控制种子泵（2），放大器泵（4）和扫描仪（6），使得种子发射的光脉冲（10）激光器（1）通过放大器（3）传播并由扫描器（6）引导到材料（8），其特征在于控制器（5）控制放大器泵（4）以使放大器（3））当光辐射（7）处于第一功率范围时用作光衰减器，并且当输出功率处于第二功率范围时用作光放大器。

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