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1. 发明申请

US20050105082A1 Method of evaluating non-linear optical crystal and device therefor and wavelength conversion method and device therefor 有权
标题翻译：评估非线性光学晶体的方法及其装置及其波长转换方法及其装置
公开(公告)号：US20050105082A1
公开(公告)日：2005-05-19
申请号：US10504290
申请日：2003-02-13
申请人： Satoshi Wada , Hideo Tashiro , Masataka Morita
发明人： Satoshi Wada , Hideo Tashiro , Masataka Morita
IPC分类号： G01M11/00 , G01N21/63 , G02F1/35 , G02F1/37 , G01N21/88
CPC分类号： G01N21/636 , G01M11/00 , G02F1/3501 , G02F1/37
摘要： A method of evaluating a non-linear optical crystal used for non-linear wavelength conversion of laser beam which enables the non-linear optical crystal to be evaluated before the crystal is actually used as a wavelength conversion element in order for the crystal to be constantly used for an extended time with a high conversion efficiency retained and without lowering in output when non-linear optical crystals for various non-linear wavelength conversions such as a CLBO crystal are used to convert laser beams, wherein the non-linear optical crystal is moved to changed a laser beam incident position to detect the output of a laser beam emitted from the non-linear optical crystal for each changing position.
摘要翻译：一种评估用于激光束的非线性波长转换的非线性光学晶体的方法，其使得在晶体实际用作波长转换元件之前能够评估非线性光学晶体以使晶体恒定用于延长的时间，保持高的转换效率，并且当用于各种非线性波长转换的非线性光学晶体（例如CLBO晶体）用于转换激光束时，输出不降低，其中非线性光学晶体被移动以改变激光束入射位置，以检测对于每个改变位置从非线性光学晶体发射的激光束的输出。

2. 发明授权

US07378636B2 Method of evaluating non-linear optical crystal and device therefor and wavelength conversion method and device therefor 有权
标题翻译：评估非线性光学晶体的方法及其装置及其波长转换方法及其装置
公开(公告)号：US07378636B2
公开(公告)日：2008-05-27
申请号：US10504290
申请日：2003-02-13
申请人： Satoshi Wada , Hideo Tashiro , Masataka Morita
发明人： Satoshi Wada , Hideo Tashiro , Masataka Morita
IPC分类号： G02B23/04 , G02F2/02
CPC分类号： G01N21/636 , G01M11/00 , G02F1/3501 , G02F1/37
摘要： A method of evaluating a non-linear optical crystal used for non-linear wavelength conversion of laser beam which enables the non-linear optical crystal to be evaluated before the crystal is actually used as a wavelength conversion element in order for the crystal to be constantly used for an extended time with a high conversion efficiency retained and without lowering in output when non-linear optical crystals for various non-linear wavelength conversions such as a CLBO crystal are used to convert laser beams, wherein the non-linear optical crystal is moved to changed a laser beam incident position to detect the output of a laser beam emitted from the non-linear optical crystal for each changing position.
摘要翻译：一种评估用于激光束的非线性波长转换的非线性光学晶体的方法，其使得在晶体实际用作波长转换元件之前能够评估非线性光学晶体以使晶体恒定用于延长的时间，保持高的转换效率，并且当用于各种非线性波长转换的非线性光学晶体（例如CLBO晶体）用于转换激光束时，输出不降低，其中非线性光学晶体被移动以改变激光束入射位置，以检测对于每个改变位置从非线性光学晶体发射的激光束的输出。

3. 发明授权

US5923685A Wavelength selectable laser oscillator in wavelength tunable laser 失效
标题翻译：波长可选激光振荡器在波长可调激光器中
公开(公告)号：US5923685A
公开(公告)日：1999-07-13
申请号：US848162
申请日：1997-04-29
申请人： Kazuyuki Akagawa , Satoshi Wada , Hideo Tashiro
发明人： Kazuyuki Akagawa , Satoshi Wada , Hideo Tashiro
IPC分类号： H01S3/10 , G02F1/11 , H01S3/081 , H01S3/094 , H01S3/106 , H01S3/108 , H01S3/16 , H01S3/117
CPC分类号： H01S3/1068 , G02F1/116 , H01S3/081 , H01S3/094
摘要： An object of the present invention is to provide a wavelength selectable laser oscillator in wavelength tunable laser by which high-speed tuning of wavelength can be achieved while utilizing continuous-wave laser beam as the excited laser beam. The wavelength selectable laser oscillator in wavelength tunable laser comprises a laser resonator composed of opposed mirrors each having a prescribed reflectivity on the outgoing side and a total reflection mirror which does not transmit light, but reflects the light; a wavelength tunable laser medium disposed in the laser resonator and capable of laser oscillation in a wavelength zone of a prescribed range; an acousto-optical crystal disposed in the laser oscillator and to which is inputted the outgoing light from the wavelength tunable laser medium; an acoustic wave inputting means mounted on the acousto-optical crystal and for inputting an acoustic wave to the acousto-optical crystal; and a continuous-wave laser for inputting excited laser beam into the laser resonator; the laser beam outputted from the mirrors on the outgoing side being utilized as the outgoing laser beam from the laser resonator.
摘要翻译：本发明的目的是提供一种波长可调激光器中的波长可选激光振荡器，通过该波长可调激光器可以在利用连续波激光束作为激发激光束的同时实现波长的高速调谐。波长可调激光器中的波长可选择激光振荡器包括由对置的反射镜组成的激光谐振器，每个反射镜在出射侧具有规定的反射率，而全反射镜不透光但反射光; 设置在所述激光谐振器中并能够在规定范围的波长区域内进行激光振荡的波长可调激光介质; 设置在激光振荡器中的声光晶体，并从波长可调激光介质输入出射光; 声波输入装置，安装在声光晶体上，并将声波输入声光晶体; 以及用于将激发的激光束输入激光谐振器的连续波激光器; 从出射侧的反射镜输出的激光束被用作来自激光谐振器的输出激光束。

4. 发明授权

US5835512A Wavelength selecting method in wavelength tunable laser and wavelength selectable laser oscillator in wavelength tunable laser 失效
标题翻译：波长可调激光器中的波长选择方法和波长可调激光器中的波长可选激光振荡器
公开(公告)号：US5835512A
公开(公告)日：1998-11-10
申请号：US769989
申请日：1996-12-19
申请人： Satoshi Wada , Kazuyuki Akagawa , Hideo Tashiro
发明人： Satoshi Wada , Kazuyuki Akagawa , Hideo Tashiro
IPC分类号： H01S3/08 , G02F1/11 , H01S3/1055 , H01S3/106 , H01S3/117
CPC分类号： H01S3/1068 , G02F1/116
摘要： An object of the present invention is to electrically tune and control an oscillating wavelength of a laser at high rate having a good reproducibility without providing any mechanically movable section in the laser resonator. To achieve the object, a laser oscillator is provided comprising a laser resonator composed of a mirror on the output side and a total reflection mirror, a Ti:Al.sub.2 O.sub.3 laser crystal disposed in the laser resonator, an acousto-optic crystal disposed in the laser resonator and to which are inputted the outputting light rays from the Ti:Al.sub.2 O.sub.3 laser crystal, a piezoelectric element mounted on the acousto-optic crystal to input acoustic waves thereto, and a diffraction light ray correcting prism disposed in the laser resonator and for correcting an angle of deflection of the diffraction light rays outputted from the acousto-optic crystal.
摘要翻译：本发明的一个目的是在激光谐振器中不提供任何机械可移动部分的情况下，以高速度对激光器的振荡波长进行电调谐和重放性良好。为了实现该目的，提供了一种激光振荡器，其包括由输出侧的反射镜和全反射镜组成的激光谐振器，设置在激光谐振器中的Ti：Al 2 O 3激光晶体，设置在激光谐振器中的声光晶体输入来自Ti：Al 2 O 3激光晶体的输出光线，安装在声光晶体上以输入声波的压电元件和设置在激光谐振器中的用于校正角度的衍射光线校正棱镜从声光晶体输出的衍射光的偏转。

5. 发明授权

US06937630B2 Laser oscillation method and laser device 失效
标题翻译：激光振荡法和激光装置
公开(公告)号：US06937630B2
公开(公告)日：2005-08-30
申请号：US10237678
申请日：2002-09-10
申请人： Satoshi Wada , Takayo Ogawa , Hideo Tashiro , Hiroshi Machida , Mikio Higuchi , Kohei Kodaira , Tomohiro Shonai
发明人： Satoshi Wada , Takayo Ogawa , Hideo Tashiro , Hiroshi Machida , Mikio Higuchi , Kohei Kodaira , Tomohiro Shonai
IPC分类号： H01S3/092 , H01S3/093 , H01S3/16 , H01S3/14
CPC分类号： H01S3/0621 , H01S3/0606 , H01S3/094038 , H01S3/09415 , H01S3/1611 , H01S3/1671
摘要： To provide a laser oscillation method and a laser device, which use a laser medium such as an Nd:GdVO4 crystal to which neodymium is doped in high concentration exceeding 1% in atomicity ratio, the laser medium comprised of the gadolinium-vanadate crystal to which neodymium as laser active ion is doped by a floating zone method such that concentration becomes exceeding 1% in atomicity ratio.
摘要翻译：为了提供激光振荡方法和激光装置，其使用Nd：GdVO 4晶体的激光介质，其中掺杂有钕以高浓度超过1％的原子比，激光介质包括的通过浮选法掺杂钕作为激光活性离子的钆 - 钒酸盐晶体，使得浓度以原子比率超过1％。

6. 发明授权

US5936981A Wavelength selectable laser oscillator in wavelength tunable laser 失效
标题翻译：波长可选激光振荡器在波长可调激光器中
公开(公告)号：US5936981A
公开(公告)日：1999-08-10
申请号：US848218
申请日：1997-04-29
申请人： Satoshi Wada , Kazuyuki Akagawa , Hideo Tashiro
发明人： Satoshi Wada , Kazuyuki Akagawa , Hideo Tashiro
IPC分类号： G02F1/35 , G02F1/11 , H01S3/094 , H01S3/106 , H01S3/108 , H01S3/16 , H01S3/10
CPC分类号： H01S3/1068 , G02F1/116 , H01S3/094038 , H01S3/1625 , H01S3/1636
摘要： An object of the present invention is to provide a wavelength selectable laser oscillator in wavelength tunable laser by which the rate of repetitive pulse oscillation of laser beam in a laser resonator can be markedly increased in comparison with that of conventional ones, besides excitation input can be decreased, and in addition, speed-up of wavelength tuning speed can be achieved, whereby flexibility is remarkably elevated in case of practicing the wavelength selectable laser oscillator. The wavelength selectable laser oscillator in wavelength tunable laser comprises a laser resonator composed of opposed mirrors each having a prescribed reflectivity; a wavelength tunable laser medium disposed in the laser resonator and capable of laser oscillation in a wavelength zone of a prescribed range; an acousto-optical crystal disposed in the laser oscillator and to which is inputted the outgoing light from the wavelength tunable laser medium; an acoustic wave inputting means mounted on the acousto-optical crystal and for inputting an acoustic wave to the acousto-optical crystal; an optical element disposed in the laser resonator and for correcting dispersion of the diffracted light outputted from the acousto-optical crystal; and a pulse excitation laser for inputting excitation laser beam into the laser resonator.
摘要翻译：本发明的目的是提供一种波长可调激光器中的波长可选激光振荡器，其中激光谐振器中的激光束的重复脉冲振荡速率可以与常规激光振荡器相比显着增加，除了激励输入可以降低，另外，可以实现波长调谐速度的加快，从而在实施波长可选激光振荡器的情况下，柔性显着提高。波长可调激光器中的波长可选激光振荡器包括由相对的反射镜组成的激光谐振器，每个反射镜具有规定的反射率; 设置在所述激光谐振器中并能够在规定范围的波长区域内进行激光振荡的波长可调激光介质; 设置在激光振荡器中的声光晶体，并从波长可调激光介质输入出射光; 声波输入装置，安装在声光晶体上，并将声波输入声光晶体; 设置在所述激光谐振器中并用于校正从所述声光晶体输出的衍射光的色散的光学元件; 以及用于将激发激光束输入激光谐振器的脉冲激励激光器。

7. 发明授权

US5734666A Method for selecting wavelength in wavelength-tunable lasers and laser oscillators capable of selecting wavelengths in wavelength-tunable lasers 失效
标题翻译：在波长可调激光器中选择波长的方法和能够选择波长可调激光器中的波长的激光振荡器
公开(公告)号：US5734666A
公开(公告)日：1998-03-31
申请号：US552515
申请日：1995-11-09
申请人： Satoshi Wada , Kouichi Toyoda , Hideo Tashiro
发明人： Satoshi Wada , Kouichi Toyoda , Hideo Tashiro
IPC分类号： H01S3/10 , H01S3/106
CPC分类号： H01S3/1068
摘要： In order to eliminate a mechanically movable section, such as a rotation mechanism of a diffraction grating, to achieve a compact fabrication of the whole apparatus, and to realize stable action for selecting a wavelength, a laser oscillator selecting a wavelength in a wavelength-tunable laser is composed of a laser resonator consisting of a mirror on the input side and a mirror on the output side; a laser medium which is placed in the laser resonator and can oscillate in a predetermined range of wavelengths; a crystal to which is piezoelectric element is attached, the crystal receiving acoustic waves from the piezoelectric element in accordance with a desired wavelength; and a polarizing plate which is placed in the laser resonator and transmits only the output light beam having a prescribed plane of polarization or having a prescribed direction of light propagation among the output light beams from the laser medium. The apparatus thereby outputs only the desired wavelength.
摘要翻译：为了消除诸如衍射光栅的旋转机构的机械可移动部分，为了实现整个装置的紧凑的制造，并且为了实现选择波长的稳定动作，选择波长可调谐波长的激光振荡器激光器由在输入侧的反射镜和输出侧的反射镜组成的激光谐振器组成; 激光介质，其被放置在激光谐振器中并且可以在预定波长范围内振荡; 安装有晶体的压电元件，所述晶体从所述压电元件接收根据期望波长的声波; 以及偏振板，其被放置在激光谐振器中，并且仅在来自激光介质的输出光束中仅透射具有规定的偏振面或具有规定的光传播方向的输出光束。因此该装置仅输出期望的波长。

8. 发明授权

US06667995B2 ultrashort pulse laser oscillator 失效
标题翻译：超短脉冲激光振荡器
公开(公告)号：US06667995B2
公开(公告)日：2003-12-23
申请号：US09794137
申请日：2001-02-28
申请人： Jihong Geng , Satoshi Wada , Hideo Tashiro
发明人： Jihong Geng , Satoshi Wada , Hideo Tashiro
IPC分类号： H01S3117
CPC分类号： H01S3/1112 , H01S3/0816 , H01S3/094038 , H01S3/0943 , H01S3/1068
摘要： For the sake of no needing to provide a mechanically actuating section such as a rotating mechanism thereby to be capable of realizing stable ultrashort pulse laser oscillation, an ultrashort pulse laser oscillator comprises a laser resonator composed of a mirror on outgoing side, and a total reflection mirror; a continuous wave oscillation laser for inputting excitation laser beam; a tunable laser medium capable of laser oscillation; a photoacoustic optical crystal having birefringent property as a crystal for selecting wavelength to which is input outgoing light from the tunable laser medium; a piezoelectric element inputting an acoustic wave having a frequency in response to a distortion upon application of voltage; a power source for applying the voltage; and a control means for controlling a frequency of voltage to be applied to the piezoelectric element by the power source wherein a frequency of voltage to be applied to the piezoelectric element by the power source is controlled by means of the control means, whereby the voltage having a frequency conforming to a distance defined between the mirror on outgoing side and the total reflection mirror is applied to the piezoelectric element by means of the power source, besides laser beam output from the mirror on outgoing side is utilized as outgoing laser beam from the laser resonator.
摘要翻译：为了不需要提供诸如旋转机构的机械致动部分，从而能够实现稳定的超短脉冲激光振荡，超短脉冲激光振荡器包括由出射侧的反射镜和全反射镜子; 用于输入激发激光束的连续波振荡激光器; 可激光振荡的可调激光介质; 具有双折射性的光声光学晶体作为用于选择从可调激光介质输入出射光的波长的晶体; 输入响应于施加电压时的失真而具有频率的声波的压电元件; 用于施加电压的电源; 以及控制装置，用于控制通过电源施加到压电元件的电压的频率，其中通过控制装置控制由电源施加到压电元件的电压的频率，由此电压具有通过电源将符合出射侧的反射镜和全反射镜之间的距离的频率施加到压电元件，除了从出射侧的反射镜输出的激光束被用作来自激光器的输出激光束谐振器。

9. 发明授权

US06432278B1 Method for controlling refractive index of silica glass 有权
$Method for controlling refractive index of silica glass$
公开(公告)号：US06432278B1
公开(公告)日：2002-08-13
申请号：US09765674
申请日：2001-01-22
申请人： Koji Sugioka , Shlomo Ruschin , Jie Zhang , Satoshi Wada , Hideo Tashiro , Koichi Toyoda
发明人： Koji Sugioka , Shlomo Ruschin , Jie Zhang , Satoshi Wada , Hideo Tashiro , Koichi Toyoda
IPC分类号： C07C100
摘要： A method for controlling an index of refraction of silica glass, and in particular quartz glass, is disclosed. The method for controlling the index of refraction of silica glass includes the use of a vacuum ultraviolet laser beam having the same or shorter wavelength absorbable by the silica glass. The vacuum ultraviolet laser beam is irradiated to the silica glass to cause photodissociation of a Si—O bond at the point of irradiation. An index of refraction may also be altered using a vacuum ultraviolet laser beam having a longer wavelength absorbable by the silica glass.

10. 发明授权

US5953154A Optically parametric oscillator and wavelength-tunable laser system 失效
标题翻译：光学参数振荡器和波长可调激光系统
公开(公告)号：US5953154A
公开(公告)日：1999-09-14
申请号：US848621
申请日：1997-04-29
申请人： Kazuyuki Akagawa , Satoshi Wada , Hideo Tashiro
发明人： Kazuyuki Akagawa , Satoshi Wada , Hideo Tashiro
IPC分类号： G02F1/39 , G02F1/11 , H01S3/106 , H01S3/108
CPC分类号： H01S3/1068 , G02F1/116 , G02F1/39
摘要： An object of the present invention is to speed up a wavelength tuning speed thereby varying both wavelengths of signal light and idler light at high speed. The optically parametric oscillator according to the present invention wherein a resonator is composed of an output coupling mirror having a prescribed transmittivity and a total reflection mirror, a nonlinear crystal is disposed in the resonator, the outgoing laser beam outputted from the laser oscillator is inputted into the resonator as excitation light to excite the nonlinear crystal, whereby both signal light and idler light having a wavelength in response to the wavelength of the excitation light, respectively, are outputted, characterized by a laser resonator composed of opposed mirrors each having a prescribed reflectivity, a wavelength tunable laser medium disposed in the laser resonator and capable of laser oscillation in the wavelength zone within a prescribed range, an acousto-optical crystal disposed in the laser resonator and to which is inputted the outgoing light from the wavelength tunable laser medium, and an acoustic wave inputting means mounted to the acousto-optical crystal and for inputting acoustic wave to the acousto-optical crystal.
摘要翻译：本发明的目的是加速波长调谐速度，从而高速地改变信号光和惰轮的两个波长。根据本发明的光参量振荡器，其中谐振器由具有规定透射率的输出耦合镜和全反射镜组成，在谐振器中设置非线性晶体，将从激光振荡器输出的输出激光束输入到谐振器作为激发光以激发非线性晶体，由此分别响应于激发光的波长的波长的信号光和惰性光被输出，其特征在于由相对的反射镜组成的激光谐振器，每个反射镜具有规定的反射率设置在所述激光谐振器中并且能够在规定范围内的波长范围内的激光振荡的波长可调激光介质，配置在所述激光谐振器中的声光晶体，并输入来自所述波长可调激光介质的输出光，以及安装在声光学上的声波输入装置并且用于将声波输入到声光晶体。

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