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21. 发明授权

US07408700B2 Optical switch, and method for controlling drive voltage thereof 有权
标题翻译：光开关及其驱动电压的控制方法
公开(公告)号：US07408700B2
公开(公告)日：2008-08-05
申请号：US11384288
申请日：2006-03-21
申请人： Yutaka Kai , Setsuo Yoshida
发明人： Yutaka Kai , Setsuo Yoshida
IPC分类号： G02F1/29
CPC分类号： G02F1/29 , G02F1/31 , G02F2001/311
摘要： An optical switch which minimizes losses in the power of output light while enabling deflection of light within a range of comparatively large deflection angles used for setting switching among output ports. The optical switch is configured to have a first light deflection element deflecting the input light at an angle appropriate to a position of an designated port with an applied first drive voltage; and a second light deflection element finely adjusting a deflection angle of the light output from the first deflection element to the designated port with an applied second drive voltage such that power of light output from the designated port becomes maximum.
摘要翻译：一种光开关，其使输出光功率的损耗最小化，同时能够在用于设置输出端口之间的切换的较大偏转角的范围内偏转光。光开关被配置为具有第一光偏转元件，其以适合于施加的第一驱动电压的指定端口的位置的角度偏转输入光; 以及第二光偏转元件，利用所施加的第二驱动电压，将从所述第一偏转元件输出的光的偏转角度精细地调整到所述指定端口，使得从所述指定端口输出的光的功率变得最大。

22. 发明申请

US20080166121A1 Control system of a multichannel optical switch 审中-公开
标题翻译：多通道光开关控制系统
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。

23. 发明申请

US20070171505A1 Acousto-optic tunable filter control apparatus automatically adjusting frequency and power of radio frequency signal 有权
标题翻译：声光可调谐滤波器控制装置自动调节射频信号的频率和功率
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。

24. 发明申请

US20060221432A1 Optical switch, and method for controlling drive voltage thereof 有权
标题翻译：光开关及其驱动电压的控制方法
公开(公告)号：US20060221432A1
公开(公告)日：2006-10-05
申请号：US11384288
申请日：2006-03-21
申请人： Yutaka Kai , Setsuo Yoshida
发明人： Yutaka Kai , Setsuo Yoshida
IPC分类号： G02F1/29
CPC分类号： G02F1/29 , G02F1/31 , G02F2001/311
摘要： An optical switch which minimizes losses in the power of output light while enabling deflection of light within a range of comparatively large deflection angles used for setting switching among output ports. The optical switch is configured to have a first light deflection element deflecting the input light at an angle appropriate to a position of an designated port with an applied first drive voltage; and a second light deflection element finely adjusting a deflection angle of the light output from the first deflection element to the designated port with an applied second drive voltage such that power of light output from the designated port becomes maximum.
摘要翻译：一种光开关，其使输出光功率的损耗最小化，同时能够在用于设置输出端口之间的切换的较大偏转角的范围内偏转光。光开关被配置为具有第一光偏转元件，其以适合于施加的第一驱动电压的指定端口的位置的角度偏转输入光; 以及第二光偏转元件，利用所施加的第二驱动电压，将从所述第一偏转元件输出的光的偏转角度精细地调整到所述指定端口，使得从所述指定端口输出的光的功率变得最大。

25. 发明授权

US06996142B2 Light source device and wavelength control device therefor 失效
公开(公告)号：US06996142B2
公开(公告)日：2006-02-07
申请号：US09804250
申请日：2001-03-13
申请人： Yutaka Kai , Hideyuki Miyata
发明人： Yutaka Kai , Hideyuki Miyata
IPC分类号： H01S3/04 , H01S3/14
CPC分类号： H04B10/572 , H01S5/026 , H01S5/06837 , H01S5/0687 , H01S5/12 , H01S5/4025 , H01S5/4031 , H01S5/4087 , H04B10/503
摘要： Disclosed herein is a light source device and a wavelength control device therefor. The light source device includes a plurality of laser diodes, a temperature sensor provided in the vicinity of the plurality of laser diodes, a control loop for controlling the temperatures of the plurality of laser diodes according to an output from the temperature sensor to thereby control the oscillation wavelengths of the plurality of laser diodes, and a unit for compensating temperature control conditions for the laser diodes other than a reference laser diode selected from the plurality of laser diodes, according to a change in temperature control condition for the reference laser diode. By the compensation of the temperature control conditions, the oscillation wavelength of each laser diode can be easily stabilized to each wavelength channel of WDM.

26. 发明申请

US20050271314A1 Optical add/drop device 失效
标题翻译：光分插装置
公开(公告)号：US20050271314A1
公开(公告)日：2005-12-08
申请号：US10960023
申请日：2004-10-08
申请人： Masaji Noguchi , Toshihisa Kyouno , Hideyuki Miyata , Yutaka Kai
发明人： Masaji Noguchi , Toshihisa Kyouno , Hideyuki Miyata , Yutaka Kai
IPC分类号： H04B10/27 , G02F1/11 , G02F1/125 , G02F1/335 , H04B10/07 , H04B10/29 , H04B10/291 , H04J14/00 , H04J14/02
CPC分类号： G02F1/125 , G02F1/116 , H04J14/0204 , H04J14/0205 , H04J14/021
摘要： A drop-type AOTF is used as a configuration for removing from a through signal an optical signal having the same wavelength as that of an optical signal to be added. To the drop-type AOTF, RF signals are input to always select all of wavelengths, and an RF signal is not input for a wavelength desired to be rejected. As a result, the optical signal having the wavelength for which the RF signal is stopped is not selected by the drop-type AOTF, and cannot pass through. Since there is only one RF signal whose input is stopped, a “drawing effect” does not occur, and control of an optical add/drop device is simplified. Additionally, since high-speed switching can be made, and a wavelength to be added can be varied, restrictions are not imposed on a network configuration.
摘要翻译：使用液滴型AOTF作为从通过信号去除与要添加的光信号的波长相同的波长的光信号的配置。对于放大型AOTF，输入RF信号以始终选择所有波长，并且不输入要被拒绝的波长的RF信号。结果，具有停止RF信号的波长的光信号不被滴型AOTF选择，不能通过。由于只有一个RF信号的输入停止，所以不会产生“绘图效果”，简化了光学分插装置的控制。此外，由于可以进行高速切换，并且可以改变要添加的波长，所以不对网络配置施加限制。

27. 发明申请

US20050226550A1 Control method and control apparatus of optical device 失效
公开(公告)号：US20050226550A1
公开(公告)日：2005-10-13
申请号：US11144607
申请日：2005-06-06
申请人： Hideyuki Miyata , Hiroshi Onaka , Tadao Nakazawa , Yutaka Kai , Hiroshi Miyata , Yoichi Takasu , Naoki Hashimuto
发明人： Hideyuki Miyata , Hiroshi Onaka , Tadao Nakazawa , Yutaka Kai , Hiroshi Miyata , Yoichi Takasu , Naoki Hashimuto
IPC分类号： G02B6/30 , G02B5/30 , G02B6/12 , G02B6/122 , G02F1/01 , G02F1/11 , G02F1/125 , G02F1/31 , H04J14/02 , G02B6/26
CPC分类号： H04J14/0221 , G02F1/0121 , G02F2203/585 , H04B10/0795 , H04B10/07953 , H04B10/0797
摘要： The present invention aims at providing a control method and a control apparatus for controlling the operation setting of an optical device with high accuracy, so as to reliably obtain characteristics according to a desired relationship to be set corresponding to a signal light, immediately after the control start. To this end, the control apparatus of the present invention comprises an optical coupler that branches a part of a main signal light input to the optical device, a monitoring optical device that operates in accordance with a control parameter same as for the optical device, and processes the monitor light branched by the optical coupler, a light receiver that receives the monitor light processed by the monitoring optical device, a detecting circuit that detects a relationship between the monitor light received by the light receiver, and the wavelength or optical power of the signal light, and a controlling circuit that adjust the control parameter for the optical device to control the operation setting, based on the relationship detected by the detecting circuit, so that characteristics of the optical device become capable of realizing the relationship to be set corresponding to the signal light.

28. 发明授权

US06462844B1 WAVELENGTH-DIVISION MULTIPLEXING TRANSMISSION SYSTEM, A METHOD FOR DESIGNING A LOSS DIFFERENCE COMPENSATOR FOR OPTICAL DEVICES USED IN THE WAVELENGTH-DIVISION MULTIPLEXING TRANSMISSION SYSTEM, AND A METHOD FOR CONFIGURING THE WAVELENGTH-DIVISION MULTIPLEXING TRANSMISSION SYSTEM 失效
标题翻译：波长段多路复用传输系统，一种用于波分复用传输系统中使用的光器件的丢失差分补偿器的方法，以及用于配置波分复用传输系统的方法
公开(公告)号：US06462844B1
公开(公告)日：2002-10-08
申请号：US09236326
申请日：1999-01-25
申请人： Yutaka Kai , Hiroshi Onaka
发明人： Yutaka Kai , Hiroshi Onaka
IPC分类号： H04J1402
CPC分类号： H04B10/2525 , H04B10/25073 , H04B2210/252 , H04B2210/254 , H04B2210/256
摘要： In a wavelength-division multiplexing transmission technique, a loss difference compensator for compensating a loss difference of an optical signal at each wavelength generated in a wavelength-division-multiplexed optical signal due to a wavelength-dependent transmission loss characteristic of an optical transmission line is disposed to the optical transmission line for transmitting the wavelength-division-multiplexed optical signal having a wide wavelength band in which optical signals at a plurality of wavelengths are wavelength-division-multiplexed to compensate the loss difference of the optical signal at each wavelength generated in the wavelength-division-multiplexed optical signal due to the wavelength-dependent transmission loss characteristic of the optical transmission line and a dispersion compensator, thereby transmitting the wavelength-division-multiplexed optical signal in a wide wavelength band for a long distance.
摘要翻译：在波分复用传输技术中，由于光传输线路的波长相关的传输损耗特性，用于补偿在波分复用光信号中产生的每个波长的光信号的损耗差的损耗差补偿器是配置在光传输线路上，用于传输具有宽波长带的波分复用光信号，其中多个波长的光信号被波分复用以补偿在每个波长处产生的每个波长的光信号的损耗差由于光传输线的波长相关的传输损耗特性和色散补偿器导致的波分复用光信号，从而在宽波长带中长波长的波分复用光信号发射。

29. 发明授权

US08582984B2 Waveform controller, responsive element module, optical switch apparatus, responsive element and optical switch apparatus control method 有权
标题翻译：波形控制器，响应元件模块，光开关装置，响应元件和光开关装置控制方法
公开(公告)号：US08582984B2
公开(公告)日：2013-11-12
申请号：US12621130
申请日：2009-11-18
申请人： Yutaka Kai
发明人： Yutaka Kai
IPC分类号： H04B10/00 , H04J14/02 , H04B10/572
CPC分类号： H04B10/572 , H03K5/01 , H03K5/08 , H04B10/508
摘要： A waveform controller includes a monitor configured to monitor a waveform of an output pulse obtained by the response of a responsive element to a driving signal supplied thereto and a driving waveform shaper configured to shape a waveform of the driving signal based on a monitoring result obtained by the monitor.
摘要翻译：波形控制器包括：监视器，被配置为监视由响应元件响应于所提供的驱动信号而获得的输出脉冲的波形;以及驱动波形整形器，其被配置为基于由监视器。

30. 发明授权

US08275258B2 Optical communication base station, optical signal conversion apparatus, and optical signal conversion method 有权
标题翻译：光通信基站，光信号转换装置和光信号转换方法
公开(公告)号：US08275258B2
公开(公告)日：2012-09-25
申请号：US12461267
申请日：2009-08-05
申请人： Yutaka Kai , Yasuhiko Aoki
发明人： Yutaka Kai , Yasuhiko Aoki
IPC分类号： H04B10/08
CPC分类号： H04J3/1694 , H04B10/272 , H04J3/22 , H04Q11/0067 , H04Q2011/0064
摘要： An optical communication base station which receives an upstream optical signal having an upstream bit rate specific to each one of a plurality of lower order communication units from a corresponding one of the plurality of lower order communication units, and which transmits a downstream optical signal having a downstream bit rate specific to each one of the plurality of lower order communication units to a designated one of the plurality of lower order communication units, includes; a first optical signal conversion unit which changes the bit rate of the upstream optical signal and thereby converts the upstream optical signal into a fixed bit-rate inter-station optical signal; and a second optical signal conversion unit which converts the inter-station optical signal into the downstream optical signal by changing the bit rate of the inter-station optical signal according to the designated one of the plurality of lower order communication units.
摘要翻译：一种光通信基站，其从多个下位通信单元中的相应一个接收具有对多个低阶通信单元中的每一个特定的上行比特率的上行光信号，并且发送具有所述多个低阶通信单元中的每一个的特定下行比特率包括：第一光信号转换单元，其改变上游光信号的比特率，从而将上游光信号转换为固定比特率站间光信号; 以及第二光信号转换单元，通过根据多个低阶通信单元中指定的一个来改变站间光信号的比特率，将站间光信号转换成下行光信号。

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