公开(公告)号：US20060171436A1

公开(公告)日：2006-08-03

申请号：US11391651

申请日：2006-03-27

申请人： Koji Tojo ,  Satoshi Irikuchi ,  Kazuma Watanabe ,  Tunehiro Sugimoto ,  Ichiro Fukushi ,  Naoya Ishigaki ,  Koji Inoue

发明人： Koji Tojo ,  Satoshi Irikuchi ,  Kazuma Watanabe ,  Tunehiro Sugimoto ,  Ichiro Fukushi ,  Naoya Ishigaki ,  Koji Inoue

IPC分类号： H01S5/00

CPC分类号： H01S3/0627 ,  H01S3/005 ,  H01S3/0092 ,  H01S3/0941 ,  H01S3/1305 ,  H01S3/1312 ,  H01S5/06223 ,  H01S5/068 ,  H01S5/06817 ,  H01S2301/02 ,  H01S2301/04

摘要： A solid laser apparatus has either a combination of a lowpass filter (9c) and a highpass filter (9d) or a bandpass filter 9f provided in its output control circuit (8, 9, 10) for increasing the gain and adjusting the phase of a signal in the vicinity of the relaxation oscillating frequency. Also, a solid laser apparatus has the phase shift circuit (9g) provided in its output control circuit (8,9,10) for advancing the phase of a signal in the vicinity of the relaxation oscillating frequency thereof. Moreover, a solid laser apparatus has a pseudo notch filter (9h), which is arranged for the gain to have a local minimum at the relaxation oscillating frequency of the solid laser apparatus, provided in the output control circuit (8,9,10) so that the peak of the gain transmission characteristic of the nonlinear optical device (4) or of a combination of the nonlinear optical device (4) and the microchip laser crystal (3) is offset.

摘要翻译： 固体激光装置具有在其输出控制电路（8,9,10）中提供的低通滤波器（9c）和高通滤波器（9d）或带通滤波器9f的组合，用于增加增益并调整 在松弛振荡频率附近的信号的相位。 此外，固体激光装置具有设置在其输出控制电路（8,9,10）中的相移电路（9g），用于使其松弛振荡频率附近的信号的相位前进。 此外，固体激光装置具有假陷波滤波器（9h），该伪陷波滤波器（9h）被设置为增益在固体激光装置的弛豫振荡频率处具有局部最小值，设置在输出控制电路（8,9,10 ），使得非线性光学器件（4）的增益透射特性的峰值或非线性光学器件（4）和微芯片激光晶体（3）的组合的峰值被偏移。

公开(公告)号：US07209504B2

公开(公告)日：2007-04-24

申请号：US11391651

申请日：2006-03-27

申请人： Koji Tojo ,  Satoshi Irikuchi ,  Kazuma Watanabe ,  Tunehiro Sugimoto ,  Ichiro Fukushi ,  Naoya Ishigaki ,  Koji Inoue

发明人： Koji Tojo ,  Satoshi Irikuchi ,  Kazuma Watanabe ,  Tunehiro Sugimoto ,  Ichiro Fukushi ,  Naoya Ishigaki ,  Koji Inoue

IPC分类号： H01S5/00

CPC分类号： H01S3/0627 ,  H01S3/005 ,  H01S3/0092 ,  H01S3/0941 ,  H01S3/1305 ,  H01S3/1312 ,  H01S5/06223 ,  H01S5/068 ,  H01S5/06817 ,  H01S2301/02 ,  H01S2301/04

摘要： A solid laser apparatus has either a combination of a lowpass filter (9c) and a highpass filter (9d) or a bandpass filter 9f provided in its output control circuit (8, 9, 10) for increasing the gain and adjusting the phase of a signal in the vicinity of the relaxation oscillating frequency.Also, a solid laser apparatus has the phase shift circuit (9g) provided in its output control circuit (8,9,10) for advancing the phase of a signal in the vicinity of the relaxation oscillating frequency thereof.Moreover, a solid laser apparatus has a pseudo notch filter (9h), which is arranged for the gain to have a local minimum at the relaxation oscillating frequency of the solid laser apparatus, provided in the output control circuit (8,9,10) so that the peak of the gain transmission characteristic of the nonlinear optical device (4) or of a combination of the nonlinear optical device (4) and the microchip laser crystal (3) is offset.

摘要翻译： 固体激光装置具有在其输出控制电路（8,9,10）中提供的低通滤波器（9c）和高通滤波器（9d）或带通滤波器9f的组合，用于增加增益并调整 在松弛振荡频率附近的信号的相位。 此外，固体激光装置具有设置在其输出控制电路（8,9,10）中的相移电路（9g），用于使其松弛振荡频率附近的信号的相位前进。 此外，固体激光装置具有假陷波滤波器（9h），该伪陷波滤波器（9h）被设置为增益在固体激光装置的弛豫振荡频率处具有局部最小值，设置在输出控制电路（8,9,10 ），使得非线性光学器件（4）的增益透射特性的峰值或非线性光学器件（4）和微芯片激光晶体（3）的组合的峰值被偏移。

公开(公告)号：US07145924B2

公开(公告)日：2006-12-05

申请号：US10791388

申请日：2004-03-02

申请人： Koji Tojo ,  Satoshi Irikuchi ,  Kazuma Watanabe ,  Tunehiro Sugimoto ,  Ichiro Fukushi ,  Naoya Ishigaki ,  Koji Inoue

发明人： Koji Tojo ,  Satoshi Irikuchi ,  Kazuma Watanabe ,  Tunehiro Sugimoto ,  Ichiro Fukushi ,  Naoya Ishigaki ,  Koji Inoue

IPC分类号： H01S3/13

CPC分类号： H01S3/0627 ,  H01S3/005 ,  H01S3/0092 ,  H01S3/0941 ,  H01S3/1305 ,  H01S3/1312 ,  H01S5/06223 ,  H01S5/068 ,  H01S5/06817 ,  H01S2301/02 ,  H01S2301/04

摘要： A solid laser apparatus has either a combination of a lowpass filter and a highpass filter or a bandpass filter provided in its output control circuit for increasing the gain and adjusting the phase of a signal in the vicinity of the relaxation oscillating frequency. Also, a solid laser apparatus has the phase shift circuit provided in its output control circuit for advancing the phase of a signal in the vicinity of the relaxation oscillating frequency thereof. Moreover, a solid laser apparatus has a pseudo notch filter, which is arranged for the gain to have a local minimum at the relaxation oscillating frequency of the solid laser apparatus, provided in the output control circuit so that the peak of the gain transmission characteristic of the nonlinear optical device or of a combination of the nonlinear optical device and the microchip laser crystal is offset.

摘要翻译： 固体激光装置具有低通滤波器和高通滤波器的组合，或者在其输出控制电路中提供的带通滤波器，用于增加增益并调节松弛振荡频率附近的信号的相位。 此外，固体激光装置具有在其输出控制电路中设置的相移电路，用于使信号在其弛豫振荡频率附近的相位前进。 此外，固体激光装置具有伪陷波滤波器，该伪陷波滤波器被设置为在输出控制电路中设置用于使增益在固体激光装置的弛豫振荡频率处具有局部最小值，使得增益传输特性的峰值 非线性光学器件或非线性光学器件和微芯片激光晶体的组合被抵消。

公开(公告)号：US07620079B2

公开(公告)日：2009-11-17

申请号：US12150714

申请日：2008-04-30

申请人： Ichiro Fukushi ,  Koji Tojo ,  Kazuma Watanabe

发明人： Ichiro Fukushi ,  Koji Tojo ,  Kazuma Watanabe

IPC分类号： H01S3/10

CPC分类号： H01S5/146 ,  H01S5/0092 ,  H01S5/024 ,  H01S5/0652 ,  H01S5/06804 ,  H01S5/141

摘要： A compact apparatus is provided for stably converting a wavelength of a laser diode with the use of an optical fiber and a wavelength selective device. Employing a bulk type element as a wavelength selective device makes the action of controlling the temperature of the device easy, and can stabilize the wavelength emitted from the laser diode.The optical fiber (2) is placed between the output side of a laser diode (1) and a wavelength selective device (5) of bulk type.While the optical fiber (2) is arranged compact in the form of a coil, the length of an extra-cavity defined by the wavelength selective device (5) is sufficiently longer than the coherence length. Accordingly, the action of stably converting the wavelength can be carried out by the compact apparatus.

公开(公告)号：US20090196320A1

公开(公告)日：2009-08-06

申请号：US12150714

申请日：2008-04-30

申请人： Ichiro Fukushi ,  Koji Tojo ,  Kazuma Watanabe

发明人： Ichiro Fukushi ,  Koji Tojo ,  Kazuma Watanabe

IPC分类号： H01S5/06 ,  H01S5/024

CPC分类号： H01S5/146 ,  H01S5/0092 ,  H01S5/024 ,  H01S5/0652 ,  H01S5/06804 ,  H01S5/141

摘要： A compact apparatus is provided for stably converting a wavelength of a laser diode with the use of an optical fiber and a wavelength selective device. Employing a bulk type element as a wavelength selective device makes the action of controlling the temperature of the device easy, and can stabilize the wavelength emitted from the laser diode.The optical fiber (2) is placed between the output side of a laser diode (1) and a wavelength selective device (5) of bulk type.While the optical fiber (2) is arranged compact in the form of a coil, the length of an extra-cavity defined by the wavelength selective device (5) is sufficiently longer than the coherence length. Accordingly, the action of stably converting the wavelength can be carried out by the compact apparatus.

摘要翻译： 提供了一种使用光纤和波长选择装置来稳定地转换激光二极管的波长的紧凑装置。 使用体积型元件作为波长选择器件使得容易控制器件的温度的作用，并且可以稳定从激光二极管发射的波长。 光纤（2）放置在激光二极管（1）的输出侧和散装型波长选择装置（5）之间。 虽然光纤（2）以线圈的形式紧凑地布置，但由波长选择装置（5）限定的外腔的长度足够长于相干长度。 因此，稳定地转换波长的动作可以通过小型装置进行。