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11. 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。

12. 发明授权

US07831118B2 Coarse wavelength division multiplexing optical transmission system, and coarse wavelength division multiplexing optical transmission method 有权
标题翻译：粗波分复用光传输系统，粗波分复用光传输方式
公开(公告)号：US07831118B2
公开(公告)日：2010-11-09
申请号：US11041433
申请日：2005-01-25
申请人： Yoichi Oikawa , Takashi Toyomaki , Tomoyuki Ohtsuka
发明人： Yoichi Oikawa , Takashi Toyomaki , Tomoyuki Ohtsuka
IPC分类号： G02B6/28 , H04J14/02
CPC分类号： H04J14/02 , H04J14/0221 , H04J14/0224
摘要： In a CWDM optical transmission system of the present invention, in place of an optical signal of at least one wave among a plurality of optical signals corresponding to a CWDM system, a DWDM light output from an additional light transmission unit of a DWDM system is given to a multiplexer via a variable optical attenuator, and multiplexed with the optical signals corresponding to CWDM, to be sent out to a transmission path. At this time, the total power of the DWDM light sent out to the transmission path, is attenuated by the variable optical attenuator, so as to be approximately equal to the power per one wavelength of the CWDM light. On an optical reception terminal, the light propagated through the transmission path is demultiplexed by a demultiplexer, and the DWDM light corresponding to the additional wavelengths is amplified by an optical amplifier and thereafter, received by an additional light reception unit. As a result, the addition of optical signals in the CWDM system can be realized at low-cost, while avoiding the reduction in transmission quality.
摘要翻译：在本发明的CWDM光传输系统中，代替对应于CWDM系统的多个光信号中的至少一波的光信号，给出从DWDM系统的附加光传输单元输出的DWDM光通过可变光衰减器到多路复用器，并且与对应于CWDM的光信号复用，以被发送到传输路径。此时，发送到传输路径的DWDM光的总功率被可变光衰减器衰减，以便近似等于CWDM光的每一个波长的功率。在光接收端子上，通过传输路径传播的光被解复用器解复用，并且与附加波长相对应的DWDM光由光放大器放大，之后由另外的光接收单元接收。结果，可以以低成本实现在CWDM系统中添加光信号，同时避免传输质量的降低。

13. 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。

14. 发明授权

US08873972B2 Optical transmission apparatus and optical transmission system 有权
标题翻译：光传输装置和光传输系统
公开(公告)号：US08873972B2
公开(公告)日：2014-10-28
申请号：US13350126
申请日：2012-01-13
申请人： Takuya Miyashita , Takashi Toyomaki
发明人： Takuya Miyashita , Takashi Toyomaki
IPC分类号： H04B10/04 , H04B10/25 , H04J14/02
CPC分类号： H04J14/02 , H04B10/25 , H04J14/0201 , H04J14/0212 , H04J14/0221 , H04J14/0279
摘要： An optical transmission apparatus includes an optical transmitter that outputs a signal light corresponding to a wavelength of a WDM light, a multiplexer that multiplexes lights input to the plurality of input ports, and that outputs a light generated through the multiplexing from the one or more output port, an optical amplifier that amplifies the light output from the multiplexer; and an amplified spontaneous emission (ASE) transmitter that inputs branching off part of the light output from the optical amplifier by a splitter and multiplexes, with the signal light, ASE in a wavelength band corresponding to an unused wavelength adjacent to the signal light included in the branched-off light.
摘要翻译：光传输装置包括：光发送器，其输出与WDM光的波长相对应的信号光;多路复用器，多路复用输入到所述多个输入端口的光，并且通过所述多路复用产生的光从所述一个或多个输出端口，放大从多路复用器输出的光的光放大器; 和放大的自发发射（ASE）发射机，其通过分离器输入从光放大器输出的光的一部分分支，并且与信号光ASE对应于与包括在其中的信号光相邻的未使用波长的波长带多路复用分支灯。

15. 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。

16. 发明申请

US20050220397A1 Coarse wavelength division multiplexing optical transmission system, and coarse wavelength division multiplexing optical transmission method 有权
标题翻译：粗波分复用光传输系统，粗波分复用光传输方式
公开(公告)号：US20050220397A1
公开(公告)日：2005-10-06
申请号：US11041433
申请日：2005-01-25
申请人： Yoichi Oikawa , Takashi Toyomaki , Tomoyuki Ohtsuka
发明人： Yoichi Oikawa , Takashi Toyomaki , Tomoyuki Ohtsuka
IPC分类号： H04B10/00 , H04B10/2507 , H04J14/00 , H04J14/02 , G02B6/28
CPC分类号： H04J14/02 , H04J14/0221 , H04J14/0224
摘要： In a CWDM optical transmission system of the present invention, in place of an optical signal of at least one wave among a plurality of optical signals corresponding to a CWDM system, a DWDM light output from an additional light transmission unit of a DWDM system is given to a multiplexer via a variable optical attenuator, and multiplexed with the optical signals corresponding to CWDM, to be sent out to a transmission path. At this time, the total power of the DWDM light sent out to the transmission path, is attenuated by the variable optical attenuator, so as to be approximately equal to the power per one wavelength of the CWDM light. On an optical reception terminal, the light propagated through the transmission path is demultiplexed by a demultiplexer, and the DWDM light corresponding to the additional wavelengths is amplified by an optical amplifier and thereafter, received by an additional light reception unit. As a result, the addition of optical signals in the CWDM system can be realized at low-cost, while avoiding the reduction in transmission quality.
摘要翻译：在本发明的CWDM光传输系统中，代替对应于CWDM系统的多个光信号中的至少一波的光信号，给出从DWDM系统的附加光传输单元输出的DWDM光通过可变光衰减器到多路复用器，并且与对应于CWDM的光信号复用，以被发送到传输路径。此时，发送到传输路径的DWDM光的总功率被可变光衰减器衰减，以便近似等于CWDM光的每一个波长的功率。在光接收端子上，通过传输路径传播的光被解复用器解复用，并且与附加波长相对应的DWDM光由光放大器放大，之后由另外的光接收单元接收。结果，可以以低成本实现在CWDM系统中添加光信号，同时避免传输质量的降低。

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