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1. 发明授权

US07991301B2 Detecting abnormality in an optical receiver 有权
标题翻译：检测光接收机的异常
公开(公告)号：US07991301B2
公开(公告)日：2011-08-02
申请号：US12058271
申请日：2008-03-28
申请人： Noriaki Mizuguchi , Takashi Toyomaki , Yoshikazu Terayama , Kenichi Kaburagi
发明人： Noriaki Mizuguchi , Takashi Toyomaki , Yoshikazu Terayama , Kenichi Kaburagi
IPC分类号： H04B10/00
CPC分类号： H04B10/677 , H04B10/0799
摘要： An optical apparatus comprising: a branching unit branching an input light modulated by DQSPK format and thereby outputting a first branched light and a second branched light; a first branch and a second branch inputting the first branched light and the second branched light, respectively, the first branch and the second branch having an interferometer, a photo detector, and discriminator and demodulating I-signal and Q-signal, respectively; and an abnormality detection unit detecting an abnormality of the input light based on a synchronized detection of a first demodulated signal output from the photo detector in the first branch and a first recovered signal output from the discriminator in the first branch, and a synchronized detection of a second demodulated signal output from the photo detector in the second branch and a second recovered signal output from the discriminator in the second branch.
摘要翻译：一种光学装置，包括：分支单元，分支由DQSPK格式调制的输入光，从而输出第一分支光和第二分支光; 第一分支和第二分支分别输入第一分支光和第二分支光，第一分支和第二分支具有干涉仪，光电检测器和鉴别器，并分别解调I信号和Q信号; 以及异常检测单元，基于从第一分支中的光电检测器输出的第一解调信号和第一分支中从鉴别器输出的第一恢复信号的同步检测，检测输入光的异常，以及同步检测从第二分支中的光电检测器输出的第二解调信号和从第二分支中的鉴别器输出的第二恢复信号。

2. 发明授权

US07684713B2 Phase control apparatus and optical DQPSK receiver 失效
标题翻译：相位控制装置和光DQPSK接收机
公开(公告)号：US07684713B2
公开(公告)日：2010-03-23
申请号：US11593591
申请日：2006-11-07
申请人： Yoshikazu Terayama , Noriaki Mizuguchi , Eiji Ishikawa , Takashi Toyomaki , Kenichi Kaburagi , Takeshi Hoshida , Jens Rasmussen , Akihiko Isomura
发明人： Yoshikazu Terayama , Noriaki Mizuguchi , Eiji Ishikawa , Takashi Toyomaki , Kenichi Kaburagi , Takeshi Hoshida , Jens Rasmussen , Akihiko Isomura
IPC分类号： H04B10/00
CPC分类号： H04B10/66
摘要： A calculation processing unit controls temperature of a Peltier device based on a slope of a waveform obtained by subtracting a waveform of a B-arm monitoring signal from a waveform of an A-arm monitoring signal and a value obtained by subtracting a value B of the B-arm monitoring signal from a value A of the A-arm monitoring signal. Similarly, the calculation processing unit controls a phase of the A-arm and a phase of the B-arm. An A-arm side micro-controller controls temperature of an A-arm side heater 22 based on the value of the A-arm monitoring signal, and controls the phase of the A-arm. A B-arm side micro-controller controls temperature of a B-arm side heater based on the value B of the B-arm monitoring signal, and controls the phase of the B-arm.
摘要翻译：计算处理单元基于通过从A臂监视信号的波形中减去B臂监视信号的波形而获得的波形的斜率，以及通过从A臂监视信号的波形中减去B的值得到的值来控制珀耳帖装置的温度 B臂监控信号从A臂A值监控信号。类似地，计算处理单元控制A臂的相位和B臂的相位。 A臂侧微型控制器基于A臂监视信号的值来控制A臂侧加热器22的温度，并且控制A臂的相位。 B臂侧微控制器基于B臂监控信号的值B控制B臂侧加热器的温度，并控制B臂的相位。

3. 发明申请

US20070292140A1 Phase control apparatus and optical DQPSK receiver 失效
标题翻译：相位控制装置和光DQPSK接收机
公开(公告)号：US20070292140A1
公开(公告)日：2007-12-20
申请号：US11593591
申请日：2006-11-07
申请人： Yoshikazu Terayama , Noriaki Mizuguchi , Eiji Ishikawa , Takashi Toyomaki , Kenichi Kaburagi , Takeshi Hoshida , Jens Rasmussen , Akihiko Isomura
发明人： Yoshikazu Terayama , Noriaki Mizuguchi , Eiji Ishikawa , Takashi Toyomaki , Kenichi Kaburagi , Takeshi Hoshida , Jens Rasmussen , Akihiko Isomura
IPC分类号： H04B10/00
CPC分类号： H04B10/66
摘要： A calculation processing unit controls temperature of a Peltier device based on a slope of a waveform obtained by subtracting a waveform of a B-arm monitoring signal from a waveform of an A-arm monitoring signal and a value obtained by subtracting a value B of the B-arm monitoring signal from a value A of the A-arm monitoring signal. Similarly, the calculation processing unit controls a phase of the A-arm and a phase of the B-arm. An A-arm side micro-controller controls temperature of an A-arm side heater 22 based on the value of the A-arm monitoring signal, and controls the phase of the A-arm. A B-arm side micro-controller controls temperature of a B-arm side heater based on the value B of the B-arm monitoring signal, and controls the phase of the B-arm.
摘要翻译：计算处理单元基于通过从A臂监视信号的波形中减去B臂监视信号的波形而获得的波形的斜率，以及通过从A臂监视信号的波形中减去B的值得到的值来控制珀耳帖装置的温度 B臂监控信号从A臂A值监控信号。类似地，计算处理单元控制A臂的相位和B臂的相位。 A臂侧微型控制器基于A臂监视信号的值来控制A臂侧加热器22的温度，并且控制A臂的相位。 B臂侧微控制器基于B臂监控信号的值B控制B臂侧加热器的温度，并控制B臂的相位。

4. 发明申请

US20080253761A1 DETECTING ABNORMALITY IN AN OPTICAL RECEIVER 有权
标题翻译：检测光接收机的异常
公开(公告)号：US20080253761A1
公开(公告)日：2008-10-16
申请号：US12058271
申请日：2008-03-28
申请人： Noriaki MIZUGUCHI , Takashi Toyomaki , Yoshikazu Terayama , Kenichi Kaburagi
发明人： Noriaki MIZUGUCHI , Takashi Toyomaki , Yoshikazu Terayama , Kenichi Kaburagi
IPC分类号： H04B17/00
CPC分类号： H04B10/677 , H04B10/0799
摘要： An optical apparatus comprising: a branching unit branching an input light modulated by DQSPK format and thereby outputting a first branched light and a second branched light; a first branch and a second branch inputting the first branched light and the second branched light, respectively, the first branch and the second branch having an interferometer, a photo detector, and discriminator and demodulating I-signal and Q-signal, respectively; and an abnormality detection unit detecting an abnormality of the input light based on a synchronized detection of a first demodulated signal output from the photo detector in the first branch and a first recovered signal output from the discriminator in the first branch, and a synchronized detection of a second demodulated signal output from the photo detector in the second branch and a second recovered signal output from the discriminator in the second branch.
摘要翻译：一种光学装置，包括：分支单元，分支由DQSPK格式调制的输入光，从而输出第一分支光和第二分支光; 第一分支和第二分支分别输入第一分支光和第二分支光，第一分支和第二分支具有干涉仪，光电检测器和鉴别器，并分别解调I信号和Q信号; 以及异常检测单元，基于从第一分支中的光电检测器输出的第一解调信号和第一分支中从鉴别器输出的第一恢复信号的同步检测，检测输入光的异常，以及同步检测从第二分支中的光电检测器输出的第二解调信号和从第二分支中的鉴别器输出的第二恢复信号。

5. 发明申请

US20090214226A1 OPTICAL DQPSK RECEIVER AND OPTICAL PHASE MONITOR APPARATUS FOR USE IN OPTICAL DQPSK RECEIVER 审中-公开
标题翻译：用于光学DQPSK接收机的光学DQPSK接收机和光相位监视器
公开(公告)号：US20090214226A1
公开(公告)日：2009-08-27
申请号：US12241962
申请日：2008-09-30
申请人： Noriaki MIZUGUCHI , Yoshikazu Terayama , Kenichi Kaburagi
发明人： Noriaki MIZUGUCHI , Yoshikazu Terayama , Kenichi Kaburagi
IPC分类号： H04B10/06
CPC分类号： H04B10/677
摘要： First and second delay interferometers respectively have a phase-shift element. First and second photo detectors respectively detect optical signals output from the first and second delay interferometers. First and second data recovery circuits recover data from signals detected by the first and second photo detectors, respectively. A common adjustment unit adjusts the phase-shift elements of both first and second delay interferometers in accordance with an output signal from the first photo detector and an output signal from the second data recovery circuit. An individual adjustment unit adjusts the phase-shift element of the second delay interferometer in accordance with the output signal from the first photo detector and an output signal from the second photo detector.
摘要翻译：第一和第二延迟干涉仪分别具有相移元件。第一和第二光电检测器分别检测从第一和第二延迟干涉仪输出的光信号。第一和第二数据恢复电路分别从由第一和第二光电检测器检测到的信号中恢复数据。公共调整单元根据来自第一光电检测器的输出信号和来自第二数据恢复电路的输出信号来调整第一和第二延迟干涉仪的相移元件。单个调整单元根据来自第一光电检测器的输出信号和来自第二光电检测器的输出信号来调整第二延迟干涉仪的相移元件。

6. 发明授权

US08538265B2 Optical communication device and dispersion compensation method 有权
标题翻译：光通信装置和色散补偿方法
公开(公告)号：US08538265B2
公开(公告)日：2013-09-17
申请号：US13200651
申请日：2011-09-28
申请人： Kenichi Kaburagi , Noriaki Mizuguchi
发明人： Kenichi Kaburagi , Noriaki Mizuguchi
IPC分类号： H04J14/02
CPC分类号： H04B10/25133
摘要： An optical communication device comprises a variable dispersion compensator, a photoelectric converter, and a processor. The variable dispersion compensator compensates an amount of wavelength dispersion of an optical signal received from an optical transmission line. The photoelectric converter converts the compensated optical signal into an electrical signal. The processor is operative to extract a frequency of the converted electrical signal, and to discriminate bit information of the electrical signal based on the frequency extracted using a decision phase and a decision threshold. The processor is operative to detect bit error information that is information related to an error of the discriminated bit information, and to control the amount of wavelength dispersion based on the detected bit error information.
摘要翻译：光通信装置包括可变色散补偿器，光电转换器和处理器。可变色散补偿器补偿从光传输线接收的光信号的波长色散量。光电转换器将补偿的光信号转换成电信号。处理器可操作地提取转换的电信号的频率，并且基于使用判定阶段和判定阈值提取的频率来区分电信号的位信息。处理器可操作以检测与鉴别位信息的错误有关的信息的位错误信息，并且基于检测到的位错误信息来控制波长色散量。

7. 发明申请

US20120020661A1 Optical communication device and dispersion compensation method 有权
标题翻译：光通信装置和色散补偿方法
公开(公告)号：US20120020661A1
公开(公告)日：2012-01-26
申请号：US13200651
申请日：2011-09-28
申请人： Kenichi Kaburagi , Noriaki Mizuguchi
发明人： Kenichi Kaburagi , Noriaki Mizuguchi
IPC分类号： H04B10/08
CPC分类号： H04B10/25133
摘要： An optical communication device comprises a variable dispersion compensator, a photoelectric converter, and a processor. The variable dispersion compensator compensates an amount of wavelength dispersion of an optical signal received from an optical transmission line. The photoelectric converter converts the compensated optical signal into an electrical signal. The processor is operative to extract a frequency of the converted electrical signal, and to discriminate bit information of the electrical signal based on the frequency extracted using a decision phase and a decision threshold. The processor is operative to detect bit error information that is information related to an error of the discriminated bit information, and to control the amount of wavelength dispersion based on the detected bit error information.
摘要翻译：光通信装置包括可变色散补偿器，光电转换器和处理器。可变色散补偿器补偿从光传输线接收的光信号的波长色散量。光电转换器将补偿的光信号转换成电信号。处理器可操作地提取转换的电信号的频率，并且基于使用判定阶段和判定阈值提取的频率来区分电信号的位信息。处理器可操作以检测与鉴别位信息的错误有关的信息的位错误信息，并且基于检测到的位错误信息来控制波长色散量。

8. 发明申请

US20080056733A1 Phase monitor used in optical receiver 失效
标题翻译：相位监视器用于光接收机
公开(公告)号：US20080056733A1
公开(公告)日：2008-03-06
申请号：US11605370
申请日：2006-11-29
申请人： Akihiko Isomura , Jens C. Rasmussen , Zhenning Tao , Noriaki Mizuguchi , Kenichi Kaburagi
发明人： Akihiko Isomura , Jens C. Rasmussen , Zhenning Tao , Noriaki Mizuguchi , Kenichi Kaburagi
IPC分类号： H04B10/06
CPC分类号： H04B10/677
摘要： Branches are grouped into a group 1 including first and second branches, and a group 2 including third and fourth branches. The signal after being passed through a dual pin photodiode in one branch included in the group 1 and being at the earlier stage of a CDR circuit is obtained. Also, from the later stage of the CDR circuit in the other branch in the group 1 is obtained. The obtained signals are passed through low pass filters, and an average value over a plurality of symbols is obtained. The signal from the earlier stage of the CDR circuit is multiplied by the signal from the later stage, and they are averaged. The obtained value reflects the phase difference of the two delay interferometers in the group 1. The group 2 is monitored by using the same method.
摘要翻译：分支被分组成包括第一和第二分支的组1，以及包括第三和第四分支的组2。获得包含在组1中并处于CDR电路的较早阶段的一个分支中的双引脚光电二极管的信号。此外，从组1中的另一个分支中的CDR电路的后期获得。所获得的信号通过低通滤波器，并获得多个符号的平均值。来自CDR电路的较早阶段的信号乘以来自后期的信号，并将它们进行平均。所获得的值反映了组1中的两个延迟干涉仪的相位差。通过使用相同的方法监视组2。

9. 发明授权

US07676162B2 Phase monitor used in optical receiver 失效
标题翻译：相位监视器用于光接收机
公开(公告)号：US07676162B2
公开(公告)日：2010-03-09
申请号：US11605370
申请日：2006-11-29
申请人： Akihiko Isomura , Jens C. Rasmussen , Zhenning Tao , Noriaki Mizuguchi , Kenichi Kaburagi
发明人： Akihiko Isomura , Jens C. Rasmussen , Zhenning Tao , Noriaki Mizuguchi , Kenichi Kaburagi
IPC分类号： H04B10/06 , H04B10/12
CPC分类号： H04B10/677
摘要： Branches are grouped into a group 1 including first and second branches, and a group 2 including third and fourth branches. The signal after being passed through a dual pin photodiode in one branch included in the group 1 and being at the earlier stage of a CDR circuit is obtained. Also, from the later stage of the CDR circuit in the other branch in the group 1 is obtained. The obtained signals are passed through low pass filters, and an average value over a plurality of symbols is obtained. The signal from the earlier stage of the CDR circuit is multiplied by the signal from the later stage, and they are averaged. The obtained value reflects the phase difference of the two delay interferometers in the group 1. The group 2 is monitored by using the same method.
摘要翻译：分支被分组成包括第一和第二分支的组1，以及包括第三和第四分支的组2。获得包含在组1中并处于CDR电路的较早阶段的一个分支中的双引脚光电二极管的信号。此外，从组1中的另一个分支中的CDR电路的后期获得。所获得的信号通过低通滤波器，并获得多个符号的平均值。来自CDR电路的较早阶段的信号乘以来自后期的信号，并将它们进行平均。所获得的值反映了组1中的两个延迟干涉仪的相位差。通过使用相同的方法来监视组2。

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