公开(公告)号：US07801451B2

公开(公告)日：2010-09-21

申请号：US11843093

申请日：2007-08-22

申请人： Hidemi Tsuchida ,  Hiroshi Ishikawa ,  Takashi Shimoyama ,  Abedin Kazi Sarwar ,  Tetsuya Miyazaki

发明人： Hidemi Tsuchida ,  Hiroshi Ishikawa ,  Takashi Shimoyama ,  Abedin Kazi Sarwar ,  Tetsuya Miyazaki

IPC分类号： H04B10/04

CPC分类号： G02F1/3517

摘要： An optical phase modulation circuit includes an optical phase modulation element, an optical bandpass filter, and an optical directional coupler, wherein control light with a wavelength of λC is coupled with probe light with a wavelength of λP using the optical directional coupler and input to the optical phase modulation element, the probe light that has been phase modulated by the optical phase modulation element is extracted through the optical band pass filter, and the phase of the probe light is modulated in response to the intensity of the control light.

摘要翻译： 光相位调制电路包括光相位调制元件，光带通滤光器和光定向耦合器，其中使用光定向耦合器将波长为λC的控制光与波长λP的探测光耦合并输入到 光相位调制元件，通过光学带通滤波器提取由光相位调制元件进行相位调制的探测光，并且响应于控制光的强度调制探测光的相位。

公开(公告)号：US08086112B2

公开(公告)日：2011-12-27

申请号：US12874030

申请日：2010-09-01

申请人： Hidemi Tsuchida ,  Hiroshi Ishikawa ,  Takashi Shimoyama ,  Abedin Kazi Sarwar ,  Tetsuya Miyazaki

发明人： Hidemi Tsuchida ,  Hiroshi Ishikawa ,  Takashi Shimoyama ,  Abedin Kazi Sarwar ,  Tetsuya Miyazaki

IPC分类号： H04B10/06

CPC分类号： G02F1/3517

摘要： An optical gate switch circuit includes: an asymmetric Mach-Zehnder interferometer having an optical path that outputs control light and probe light to a second optical directional coupler via a first optical directional coupler and an optical phase modulation element, and another optical path that connects a third optical directional coupler to which the probe light is input, to the second optical directional coupler via a variable optical attenuator and an optical phase shifter; and a bandpass filter connected to the second optical directional coupler.

摘要翻译： 光栅开关电路包括：非对称马赫 - 曾德干涉仪，其具有经由第一光学定向耦合器和光相位调制元件将控制光和探测光输出到第二光学定向耦合器的光路，以及连接 通过可变光衰减器和光学移相器将探测光输入的第三光学定向耦合器连接到第二光学定向耦合器; 以及连接到第二光学定向耦合器的带通滤波器。

公开(公告)号：US06591026B2

公开(公告)日：2003-07-08

申请号：US09994614

申请日：2001-11-28

申请人： Michiyuki Endo ,  Hidemi Tsuchida

发明人： Michiyuki Endo ,  Hidemi Tsuchida

IPC分类号： G02B626

CPC分类号： H04B10/506 ,  G02F2/02 ,  G02F2203/54 ,  G02F2203/56

摘要： A method of generating a single-sideband optical frequency comb uses an optical fiber loop that contains an optical modulator and an optical amplifier. The optical modulator is used to generate a sideband signal on only one side of a reference signal. The signal thus generated is circulated in the fiber loop while using the amplifier to compensate for optical loss in the course of the circulation. In this way, at the output, a grid of frequency axis components is generated over a wide frequency span