公开(公告)号：US20070116404A1

公开(公告)日：2007-05-24

申请号：US11363209

申请日：2006-02-28

申请人： Takashi Nakano ,  Masaji Noguchi ,  Tatsuji Satou ,  Tomohiro Ueno ,  Yutaka Kai ,  Yutaka Takita

发明人： Takashi Nakano ,  Masaji Noguchi ,  Tatsuji Satou ,  Tomohiro Ueno ,  Yutaka Kai ,  Yutaka Takita

IPC分类号： G02B6/26

CPC分类号： G02F1/31

摘要： A response-time storing unit stores a response time from start of output of driving force required for switching paths until stabilization of the driving force, for each of the paths to be connected. A driving-force correcting unit corrects output level of the driving force, starting correction of the output level of the driving force after the response time for a specified path stored in the response-time storing unit has passed since output of the driving force required for switching to the specified path started.

摘要翻译： 响应时间存储单元存储从切换路径所需的驱动力的输出开始直到驱动力的稳定的响应时间，对于要连接的每个路径。 驱动力校正单元校正驱动力的输出水平，从存储在响应时间存储单元中的指定路径的响应时间开始校正驱动力的输出水平，由此输出所需的驱动力 切换到指定的路径开始。

公开(公告)号：US20080166121A1

公开(公告)日：2008-07-10

申请号：US11785658

申请日：2007-04-19

申请人： Takashi Nakano ,  Tomohiro Ueno ,  Yutaka Kai ,  Yutaka Takita

发明人： Takashi Nakano ,  Tomohiro Ueno ,  Yutaka Kai ,  Yutaka Takita

IPC分类号： H04J14/00

CPC分类号： H04Q11/0005 ,  H04Q2011/0024 ,  H04Q2011/0039 ,  H04Q2011/0043 ,  H04Q2011/0058

摘要： A control system of a multichannel optical switch suppressing the generation of a leakage current in a multichannel, highly integrated EO-SW to enable stable operation, that is, a control system of a multichannel optical switch using devices having an EO effect wherein an electrode voltage application device applies voltage for switching optical switch devices based on switching data when judging that an elapsed time from when the switching data has started to be output from a path switching instruction device is shorter than a predetermined counted time threshold and the electrode voltage application device applies voltage for switching based on the switching data only when a switching judgment processing device judges that predetermined switching conditions have been met when judging that the elapsed time has been exceeded and does not apply voltage for switching to the switch devices and sends a switching failure notice to a path switching instruction device from the switching judgment processing device when judging that predetermined switching conditions have not been met.

摘要翻译： 一种多通道光开关的控制系统，其抑制在多通道高度集成的EO-SW中产生泄漏电流以实现稳定操作，即使用具有EO效应的器件的多通道光开关的控制系统，其中电极电压 当判断从开关数据开始到从路径切换指令装置输出的经过时间短于预定计数时间阈值时，应用装置基于切换数据施加用于切换光开关装置的电压，并且电极电压施加装置 仅当切换判断处理装置在判定已经超过经过时间的情况下判断为满足规定的切换条件而不施加用于切换到切换装置的电压的情况下，基于切换数据进行切换的电压，并将切换故障通知发送到 来自切换判断的路径切换指令装置 在判定未满足规定的切换条件的情况下进行处理。

公开(公告)号：US20070171505A1

公开(公告)日：2007-07-26

申请号：US11443114

申请日：2006-05-31

申请人： Masaji Noguchi ,  Tomohiro Ueno ,  Goji Nakagawa ,  Yutaka Kai

发明人： Masaji Noguchi ,  Tomohiro Ueno ,  Goji Nakagawa ,  Yutaka Kai

IPC分类号： G02F1/11

CPC分类号： G02F1/113

摘要： An AOTF control apparatus, which applies an RF signal to an AOTF to allow a selected light to pass through the AOTF, includes: a first calculating unit calculating a relationship between a frequency of the RF signal and a wavelength of the selected light based on a frequency of the RF signal that allows a reference light to pass through the AOTF; and a second calculating unit calculating a relationship between a power of the RF signal and an attenuation amount of the selected light based on an input/output power of the reference signal at the input/output of the AOTF.

摘要翻译： AOTF控制装置，其向AOTF施加RF信号以允许所选择的光通过AOTF，包括：第一计算单元，基于所述第一计算单元计算所述RF信号的频率与所选择的光的波长之间的关系 允许参考光通过AOTF的RF信号的频率; 以及第二计算单元，基于在AOTF的输入/输出处的参考信号的输入/输出功率来计算RF信号的功率与所选择的光的衰减量之间的关系。

公开(公告)号：US20080068051A1

公开(公告)日：2008-03-20

申请号：US11727632

申请日：2007-03-27

申请人： Masaji Noguchi ,  Tomohiro Ueno ,  Yutaka Kai ,  Setsuo Yoshida

发明人： Masaji Noguchi ,  Tomohiro Ueno ,  Yutaka Kai ,  Setsuo Yoshida

IPC分类号： H03K3/00

CPC分类号： H04Q11/0005 ,  H03K19/00346 ,  H04Q2011/0013 ,  H04Q2011/0039

摘要： A driving circuit of a semiconductor optical amplifier type gate switch constituting a matrix optical switch is provided with an operation amplifier into which a driving signal is input and from which a current corresponding to the driving signal is output, an inductance element provided at an output terminal of the operation amplifier, and a circuit composed of a diode element and a resistor element connected in parallel and provided between the inductance element and the semiconductor optical amplifier.

摘要翻译： 构成矩阵光开关的半导体光放大型门极开关的驱动电路设置有输入驱动信号的运算放大器，输出与驱动信号对应的电流，设置在输出端子的电感元件 以及由并联连接并设置在电感元件和半导体光放大器之间的二极管元件和电阻元件构成的电路。

公开(公告)号：US07898341B2

公开(公告)日：2011-03-01

申请号：US12230260

申请日：2008-08-26

申请人： Tomohiro Ueno ,  Masaji Noguchi ,  Yutaka Kai ,  Setsuo Yoshida

发明人： Tomohiro Ueno ,  Masaji Noguchi ,  Yutaka Kai ,  Setsuo Yoshida

IPC分类号： H03F3/08

CPC分类号： H03F1/565

摘要： A non-inverting amplifier circuit is disclosed that includes an operational amplifier and a preemphasis circuit connected between the operational amplifier and a signal source. The preemphasis circuit is configured to compensate for the internal delay of a load connected to the output of the operational amplifier by emphasizing a high-frequency component of a signal fed from the signal source.

摘要翻译： 公开了一种非反相放大器电路，其包括连接在运算放大器和信号源之间的运算放大器和预加重电路。 预加重电路被配置为通过强调从信号源馈送的信号的高频分量来补偿连接到运算放大器的输出的负载的内部延迟。

公开(公告)号：US20080239472A1

公开(公告)日：2008-10-02

申请号：US12068354

申请日：2008-02-05

申请人： Masaji Noguchi ,  Tomohiro Ueno ,  Yutaka Kai ,  Setsuo Yoshida

发明人： Masaji Noguchi ,  Tomohiro Ueno ,  Yutaka Kai ,  Setsuo Yoshida

IPC分类号： H01S3/00 ,  G02B6/42

CPC分类号： G06E1/00 ,  G02F1/015

摘要： A semiconductor optical amplification module that can suppress ringing without increasing power consumption or circuit size or inhibiting high-speed operation. A semiconductor optical amplifier outputs an optical signal inputted according to driving current outputted from a drive circuit. A diode is connected in parallel with the semiconductor optical amplifier. As a result, it becomes possible to suppress ringing without connecting a large resistor to the drive circuit.

摘要翻译： 一种半导体光放大模块，其可以在不增加功耗或电路尺寸或抑制高速操作的情况下抑制振铃。 半导体光放大器输出根据从驱动电路输出的驱动电流输入的光信号。 二极管与半导体光放大器并联连接。 结果，可以在不将大电阻器连接到驱动电路的情况下抑制振铃。

公开(公告)号：US07181094B2

公开(公告)日：2007-02-20

申请号：US11213955

申请日：2005-08-30

申请人： Masaji Noguchi ,  Tomohiro Ueno ,  Hiroyasu Ito ,  Hideyuki Miyata ,  Yutaka Kai

发明人： Masaji Noguchi ,  Tomohiro Ueno ,  Hiroyasu Ito ,  Hideyuki Miyata ,  Yutaka Kai

IPC分类号： G02F1/335 ,  H04J14/02 ,  H04B10/00

CPC分类号： G02F1/113

摘要： A radio-frequency-signal generator generates an RF signal. An optical monitor monitors a first intensity of a reference signal and a second intensity of a drop signal. A reference-frequency determining unit determines, based on the first intensity, a first frequency of an RF signal that causes the AOTF to output the reference signal. A temperature detecting unit detects a temperature of the AOTF. A frequency calculating unit calculates a second frequency of an RF signal that causes the AOTF to output a drop signal of a desired wavelength. A control unit controls the RF-signal generator to generate the RF signal of the second frequency calculated.

摘要翻译： 射频信号发生器产生RF信号。 光学监视器监视参考信号的第一强度和下降信号的第二强度。 参考频率确定单元基于第一强度确定使AOTF输出参考信号的RF信号的第一频率。 温度检测单元检测AOTF的温度。 频率计算单元计算使AOTF输出所需波长的液滴信号的RF信号的第二频率。 控制单元控制RF信号发生器以产生所计算的第二频率的RF信号。

公开(公告)号：US08139903B2

公开(公告)日：2012-03-20

申请号：US12926199

申请日：2010-11-01

申请人： Masaji Noguchi ,  Tomohiro Ueno ,  Yutaka Kai ,  Setsuo Yoshida

发明人： Masaji Noguchi ,  Tomohiro Ueno ,  Yutaka Kai ,  Setsuo Yoshida

IPC分类号： G02F1/035

CPC分类号： H04Q11/0005 ,  H03K19/00346 ,  H04Q2011/0013 ,  H04Q2011/0039

摘要： A driving circuit of a semiconductor optical amplifier type gate switch constituting a matrix optical switch is provided with an operation amplifier into which a driving signal is input and from which a current corresponding to the driving signal is output, an inductance element provided at an output terminal of the operation amplifier, and a circuit composed of a diode element and a resistor element connected in parallel and provided between the inductance element and the semiconductor optical amplifier.

摘要翻译： 构成矩阵光开关的半导体光放大型门极开关的驱动电路设置有输入驱动信号的运算放大器，输出与驱动信号对应的电流，设置在输出端子的电感元件 以及由并联连接并设置在电感元件和半导体光放大器之间的二极管元件和电阻元件构成的电路。

公开(公告)号：US07791793B2

公开(公告)日：2010-09-07

申请号：US12002763

申请日：2007-12-19

申请人： Masaji Noguchi ,  Tomohiro Ueno ,  Yutaka Kai ,  Setsuo Yoshida

发明人： Masaji Noguchi ,  Tomohiro Ueno ,  Yutaka Kai ,  Setsuo Yoshida

IPC分类号： H04J14/02 ,  G05F1/00 ,  H01S5/00

CPC分类号： H04Q11/0005 ,  H03D9/00 ,  H04Q2011/0011 ,  H04Q2011/0013 ,  H04Q2011/0016 ,  H04Q2011/0024 ,  H04Q2011/0039

摘要： A drive circuit is provided for a semiconductor optical amplifier type gate switch includes a first transmission path and a second transmission path. The first transmission path includes a common first sub-path between a signal source and a first node; and an individual second sub-path for each of a plurality of operational amplifiers between the first node and a corresponding one of the operational amplifiers. The second transmission path includes an individual third sub-path between each of the operational amplifiers and a second node; and a common fourth sub-path between the second node and the semiconductor optical amplifier type gate switches. Transmission delay times of all the individual second sub-paths are equal, and transmission delay times of all the individual third sub-paths are equal.

摘要翻译： 提供了一种用于半导体光放大器型栅极开关的驱动电路，其包括第一传输路径和第二传输路径。 第一传输路径包括信号源和第一节点之间的公共第一子路径; 以及用于第一节点和运算放大器中的相应一个之间的多个运算放大器中的每一个的单独的第二子路径。 第二传输路径包括每个运算放大器和第二节点之间的单独的第三子路径; 以及第二节点和半导体光放大器型栅极开关之间的公共第四子路径。 所有各个第二子路径的传输延迟时间相等，并且所有各个第三子路径的传输延迟时间相等。

公开(公告)号：US07405858B2

公开(公告)日：2008-07-29

申请号：US11443114

申请日：2006-05-31

申请人： Masaji Noguchi ,  Tomohiro Ueno ,  Goji Nakagawa ,  Yutaka Kai

发明人： Masaji Noguchi ,  Tomohiro Ueno ,  Goji Nakagawa ,  Yutaka Kai

IPC分类号： G02F1/11 ,  G02F1/33 ,  G02B26/00 ,  G02B26/08

CPC分类号： G02F1/113

摘要： An AOTF control apparatus, which applies an RF signal to an AOTF to allow a selected light to pass through the AOTF, includes: a first calculating unit calculating a relationship between a frequency of the RF signal and a wavelength of the selected light based on a frequency of the RF signal that allows a reference light to pass through the AOTF; and a second calculating unit calculating a relationship between a power of the RF signal and an attenuation amount of the selected light based on an input/output power of the reference signal at the input/output of the AOTF.

摘要翻译： AOTF控制装置，其向AOTF施加RF信号以允许所选择的光通过AOTF，包括：第一计算单元，基于所述第一计算单元计算所述RF信号的频率与所选择的光的波长之间的关系 允许参考光通过AOTF的RF信号的频率; 以及第二计算单元，基于在AOTF的输入/输出处的参考信号的输入/输出功率来计算RF信号的功率与所选择的光的衰减量之间的关系。