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1. 发明申请

US20070248361A1 Polarization scrambler, optical add/drop multiplexer, optical route switching apparatus and wavelength division multiplexing optical transmission system 有权
标题翻译：偏振加扰器，光分插复用器，光路转换装置和波分复用光传输系统
公开(公告)号：US20070248361A1
公开(公告)日：2007-10-25
申请号：US11517392
申请日：2006-09-08
申请人： Kentaro Nakamura , Masahiro Yuki , Takeshi Hoshida , George Ishikawa
发明人： Kentaro Nakamura , Masahiro Yuki , Takeshi Hoshida , George Ishikawa
IPC分类号： H04B10/00
CPC分类号： H04J14/0212 , H04B10/2569 , H04B10/532 , H04J14/0204 , H04J14/0206 , H04J14/0209 , H04J14/0227 , H04J14/0241 , H04J14/028 , H04J14/0283
摘要： A polarization scrambler has a polarization state rotating unit rotating the polarization state of a signal light, and a rotation speed controlling unit controlling the rotation speed of the polarization state in the polarization state rotating unit on the basis of the speed and scheme of modulation of the signal light, and the value of polarization mode dispersion of a transmission path on which the signal light is to be transmitted. Degradation of the transmission quality due to PMD is more mitigated than the known techniques.
摘要翻译：偏振加扰器具有旋转信号光的偏振状态的偏振状态旋转单元，以及基于偏振状态旋转单元的调制速度和调制方式来控制偏振状态旋转单元中的偏振状态的旋转速度的旋转速度控制单元信号光，以及发射信号光的传输路径的偏振模色散值。由PMD导致的传输质量的降低比已知技术更为缓和。

2. 发明授权

US07583895B2 Polarization scrambler, optical add/drop multiplexer, optical route switching apparatus and wavelength division multiplexing optical transmission system 有权
标题翻译：偏振加扰器，光分插复用器，光路转换装置和波分复用光传输系统
公开(公告)号：US07583895B2
公开(公告)日：2009-09-01
申请号：US11517392
申请日：2006-09-08
申请人： Kentaro Nakamura , Masahiro Yuki , Takeshi Hoshida , George Ishikawa
发明人： Kentaro Nakamura , Masahiro Yuki , Takeshi Hoshida , George Ishikawa
IPC分类号： H04B10/00 , H04B10/12 , H04J14/06
CPC分类号： H04J14/0212 , H04B10/2569 , H04B10/532 , H04J14/0204 , H04J14/0206 , H04J14/0209 , H04J14/0227 , H04J14/0241 , H04J14/028 , H04J14/0283
摘要： A polarization scrambler has a polarization state rotating unit rotating the polarization state of a signal light, and a rotation speed controlling unit controlling the rotation speed of the polarization state in the polarization state rotating unit on the basis of the speed and scheme of modulation of the signal light, and the value of polarization mode dispersion of a transmission path on which the signal light is to be transmitted. Degradation of the transmission quality due to PMD is more mitigated than the known techniques.
摘要翻译：偏振加扰器具有旋转信号光的偏振状态的偏振状态旋转单元，以及基于偏振状态旋转单元的调制速度和调制方式来控制偏振状态旋转单元中的偏振状态的旋转速度的旋转速度控制单元信号光，以及发射信号光的传输路径的偏振模色散值。由PMD导致的传输质量的降低比已知技术更为缓和。

3. 发明授权

US07817923B2 Optical transmitting apparatus, optical receiving apparatus, and optical communication system comprising them 有权
标题翻译：光发送装置，光接收装置和包括它们的光通信系统
公开(公告)号：US07817923B2
公开(公告)日：2010-10-19
申请号：US11275420
申请日：2005-12-30
申请人： Yuichi Akiyama , Takeshi Hoshida , Yutaka Kai , Hiroki Ooi , Kentaro Nakamura , Naoki Kuwata , Yoshinori Nishizawa , Tomoo Takahara , Masahiro Yuki
发明人： Yuichi Akiyama , Takeshi Hoshida , Yutaka Kai , Hiroki Ooi , Kentaro Nakamura , Naoki Kuwata , Yoshinori Nishizawa , Tomoo Takahara , Masahiro Yuki
IPC分类号： H04B10/04
CPC分类号： G02F1/2255 , G02F1/0123 , H04B10/505 , H04B10/5051 , H04B10/5053 , H04B10/50575 , H04B10/50577 , H04B10/50595 , H04B10/5162 , H04B10/5165 , H04B10/5561 , H04B10/66 , H04B10/677
摘要： A phase shift unit provides a prescribed phase difference (π/2, for example) between a pair of optical signals transmitted via a pair of arms constituting a data modulation unit. A low-frequency signal f0 is superimposed on one of the optical signals. A signal of which phase is shifted by π/2 from the low-frequency signal f0 is superimposed on the other optical signal. A pair of the optical signals is coupled, and a part of which is converted into an electrical signal by a photodiode. 2f0 component contained in the electrical signal is extracted. Bias voltage provided to the phase shift unit is controlled by feedback control so that the 2f0 component becomes the minimum.
摘要翻译：相移单元在经由构成数据调制单元的一对臂发送的一对光信号之间提供规定的相位差（＆pgr / / 2）。低频信号f0叠加在一个光信号上。将相位从低频信号f0移位了＆pgr / / 2的信号叠加在另一个光信号上。一对光信号被耦合，其一部分由光电二极管转换成电信号。提取包含在电信号中的2f0分量。通过反馈控制来控制提供给相移单元的偏压，使得2f0分量成为最小值。

4. 发明授权

US08867927B2 Optical transmitting apparatus, optical receiving apparatus, and optical communication system comprising them 有权
标题翻译：光发送装置，光接收装置和包括它们的光通信系统
公开(公告)号：US08867927B2
公开(公告)日：2014-10-21
申请号：US12879820
申请日：2010-09-10
申请人： Yuichi Akiyama , Takeshi Hoshida , Akira Miura , Yutaka Kai , Hiroki Ooi , Jens Rasmussen , Kentaro Nakamura , Naoki Kuwata , Yoshinori Nishizawa , Tomoo Takahara , Masahiro Yuki
发明人： Yuichi Akiyama , Takeshi Hoshida , Akira Miura , Yutaka Kai , Hiroki Ooi , Jens Rasmussen , Kentaro Nakamura , Naoki Kuwata , Yoshinori Nishizawa , Tomoo Takahara , Masahiro Yuki
IPC分类号： H04B10/04
CPC分类号： G02F1/2255 , G02F1/0123 , H04B10/505 , H04B10/5051 , H04B10/5053 , H04B10/50575 , H04B10/50577 , H04B10/50595 , H04B10/5162 , H04B10/5165 , H04B10/5561 , H04B10/66 , H04B10/677
摘要： A phase shift unit provides a prescribed phase difference (π/2, for example) between a pair of optical signals transmitted via a pair of arms constituting a data modulation unit. A low-frequency signal f0 is superimposed on one of the optical signals. A signal of which phase is shifted by π/2 from the low-frequency signal f0 is superimposed on the other optical signal. A pair of the optical signals is coupled, and a part of which is converted into an electrical signal by a photodiode. 2f0 component contained in the electrical signal is extracted. Bias voltage provided to the phase shift unit is controlled by feedback control so that the 2f0 component becomes the minimum.
摘要翻译：相移单元在经由构成数据调制单元的一对臂发送的一对光信号之间提供规定的相位差（＆pgr / / 2）。低频信号f0叠加在一个光信号上。将相位从低频信号f0移位了＆pgr / / 2的信号叠加在另一个光信号上。一对光信号被耦合，其一部分由光电二极管转换成电信号。提取包含在电信号中的2f0分量。通过反馈控制来控制提供给相移单元的偏压，使得2f0分量成为最小值。

5. 发明申请

US20120082465A1 OPTICAL TRANSMITTING APPARATUS, OPTICAL RECEIVING APPARATUS, AND OPTICAL COMMUNICATION SYSTEM COMPRISING THEM 有权
标题翻译：光传输装置，光接收装置，以及包含它们的光通信系统
公开(公告)号：US20120082465A1
公开(公告)日：2012-04-05
申请号：US12879820
申请日：2010-09-10
申请人： Yuichi Akiyama , Takeshi Hoshida , Akira Miura , Yutaka Kai , Hiroki Ooi , Jens Rasmussen , Kentaro Nakamura , Naoki Kuwata , Yoshinori Nishizawa , Tomoo Takahara , Masahiro Yuki
发明人： Yuichi Akiyama , Takeshi Hoshida , Akira Miura , Yutaka Kai , Hiroki Ooi , Jens Rasmussen , Kentaro Nakamura , Naoki Kuwata , Yoshinori Nishizawa , Tomoo Takahara , Masahiro Yuki
IPC分类号： H04B10/06 , H04B10/00
CPC分类号： G02F1/2255 , G02F1/0123 , H04B10/505 , H04B10/5051 , H04B10/5053 , H04B10/50575 , H04B10/50577 , H04B10/50595 , H04B10/5162 , H04B10/5165 , H04B10/5561 , H04B10/66 , H04B10/677
摘要： A phase shift unit provides a prescribed phase difference (π/2, for example) between a pair of optical signals transmitted via a pair of arms constituting a data modulation unit. A low-frequency signal f0 is superimposed on one of the optical signals. A signal of which phase is shifted by π/2 from the low-frequency signal f0 is superimposed on the other optical signal. A pair of the optical signals is coupled, and a part of which is converted into an electrical signal by a photodiode. 2f0 component contained in the electrical signal is extracted. Bias voltage provided to the phase shift unit is controlled by feedback control so that the 2f0 component becomes the minimum.
摘要翻译：相移单元在经由构成数据调制单元的一对臂发送的一对光信号之间提供规定的相位差（＆pgr / / 2）。低频信号f0叠加在一个光信号上。将相位从低频信号f0移位了＆pgr / / 2的信号叠加在另一个光信号上。一对光信号被耦合，其一部分由光电二极管转换成电信号。提取包含在电信号中的2f0分量。通过反馈控制来控制提供给相移单元的偏压，使得2f0分量成为最小值。

6. 发明申请

US20060263098A1 OPTICAL TRANSMITTING APPARATUS, OPTICAL RECEIVING APPARATUS, AND OPTICAL COMMUNICATION SYSTEM COMPRISING THEM 有权
标题翻译：光传输装置，光接收装置，以及包含它们的光通信系统
公开(公告)号：US20060263098A1
公开(公告)日：2006-11-23
申请号：US11275420
申请日：2005-12-30
申请人： Yuichi AKIYAMA , Takeshi Hoshida , Akira Miura , Yutaka Kai , Hiroki Ooi , Jens Rasmussen , Kentaro Nakamura , Naoki Kuwata , Yoshinori Nishizawa , Tomoo Takahara , Masahiro Yuki
发明人： Yuichi AKIYAMA , Takeshi Hoshida , Akira Miura , Yutaka Kai , Hiroki Ooi , Jens Rasmussen , Kentaro Nakamura , Naoki Kuwata , Yoshinori Nishizawa , Tomoo Takahara , Masahiro Yuki
IPC分类号： H04B10/04
CPC分类号： G02F1/2255 , G02F1/0123 , H04B10/505 , H04B10/5051 , H04B10/5053 , H04B10/50575 , H04B10/50577 , H04B10/50595 , H04B10/5162 , H04B10/5165 , H04B10/5561 , H04B10/66 , H04B10/677
摘要： A phase shift unit provides a prescribed phase difference (π/2, for example) between a pair of optical signals transmitted via a pair of arms constituting a data modulation unit. A low-frequency signal f0 is superimposed on one of the optical signals. A signal of which phase is shifted by π/2 from the low-frequency signal f0 is superimposed on the other optical signal. A pair of the optical signals is coupled, and a part of which is converted into an electrical signal by a photodiode. 2f0 component contained in the electrical signal is extracted. Bias voltage provided to the phase shift unit is controlled by feedback control so that the 2f0 component becomes the minimum.
摘要翻译：相移单元在经由构成数据调制单元的一对臂发送的一对光信号之间提供规定的相位差（pi / 2）。在其中一个光信号上叠加低频信号f 0 0。将相位从低频信号f 0 0 <0>移位π/ 2的信号叠加在另一个光信号上。一对光信号被耦合，其一部分由光电二极管转换成电信号。提取包含在电信号中的2f 0 0分量。通过反馈控制来控制提供给相移单元的偏压，使得2f 0 0分量成为最小。

7. 发明申请

US20070177151A1 Interferometer for demodulating differential M-phase shift keying signal 失效
标题翻译：用于解调差分M相移键控信号的干涉仪
公开(公告)号：US20070177151A1
公开(公告)日：2007-08-02
申请号：US11651591
申请日：2007-01-10
申请人： Akihiko Isomura , Jens Rasmussen , Takafumi Terahara , Kentaro Nakamura , Takeshi Hoshida , George Ishikawa , Hiroshi Onaka , Morio Wada , Hiroyuki Matsuura , Akira Miura , Yasuyyki Suzuki , Hideaki Arai , Satoshi Takasugi
发明人： Akihiko Isomura , Jens Rasmussen , Takafumi Terahara , Kentaro Nakamura , Takeshi Hoshida , George Ishikawa , Hiroshi Onaka , Morio Wada , Hiroyuki Matsuura , Akira Miura , Yasuyyki Suzuki , Hideaki Arai , Satoshi Takasugi
IPC分类号： G01B9/02
CPC分类号： G02F1/225 , G02F2203/21 , H04L1/0047 , H04L27/223
摘要： An interferometer for demodulating a differential M-phase shift keying signal includes a PLC type interferometer main body, a heating portion that heats the PLC type interferometer main body, and an intermediate member having a higher stiffness than that of the PLC type interferometer main body, for bonding the PLC type interferometer main body and the heating portion with each other while being sandwiched therebetween. A linear expansion coefficient difference between the PLC type interferometer main body and the intermediate member is equal to or smaller than 4.5×10−6/° C., and a thermal conductivity difference between the PLC type interferometer main body and the intermediate member is equal to or larger than 10 W/mK. A phase of an optical signal flowing through the interferometer is adjusted by using the heating portion and a second heating portion.
摘要翻译：用于解调差分M相移键控信号的干涉仪包括PLC型干涉仪主体，加热PLC型干涉仪主体的加热部分和具有比PLC型干涉仪主体更高刚度的中间部件，用于将PLC型干涉仪主体和加热部分夹在两者之间彼此粘合。 PLC型干涉仪主体与中间部件之间的线膨胀系数差等于或小于4.5×10 -6 /℃，PLC型干涉仪主体之间的热导率差中间部件为10W / m·K以上。通过使用加热部和第二加热部来调节流过干涉仪的光信号的相位。

8. 发明授权

US07860408B2 Interferometer for demodulating differential M-phase shift keying signal 失效
标题翻译：用于解调差分M相移键控信号的干涉仪
公开(公告)号：US07860408B2
公开(公告)日：2010-12-28
申请号：US11651591
申请日：2007-01-10
申请人： Akihiko Isomura , Jens Rasmussen , Takafumi Terahara , Kentaro Nakamura , Takeshi Hoshida , George Ishikawa , Hiroshi Onaka , Morio Wada , Hiroyuki Matsuura , Akira Miura , Yasuyuki Suzuki , Hideaki Arai , Satoshi Takasugi
发明人： Akihiko Isomura , Jens Rasmussen , Takafumi Terahara , Kentaro Nakamura , Takeshi Hoshida , George Ishikawa , Hiroshi Onaka , Morio Wada , Hiroyuki Matsuura , Akira Miura , Yasuyuki Suzuki , Hideaki Arai , Satoshi Takasugi
IPC分类号： H04B10/06
CPC分类号： G02F1/225 , G02F2203/21 , H04L1/0047 , H04L27/223
摘要： An interferometer for demodulating a differential M-phase shift keying signal includes a PLC type interferometer main body, a heating portion that heats the PLC type interferometer main body, and an intermediate member having a higher stiffness than that of the PLC type interferometer main body, for bonding the PLC type interferometer main body and the heating portion with each other while being sandwiched therebetween. A linear expansion coefficient difference between the PLC type interferometer main body and the intermediate member is equal to or smaller than 4.5×10−6/° C., and a thermal conductivity difference between the PLC type interferometer main body and the intermediate member is equal to or larger than 10 W/mK. A phase of an optical signal flowing through the interferometer is adjusted by using the heating portion and a second heating portion.
摘要翻译：用于解调差分M相移键控信号的干涉仪包括PLC型干涉仪主体，加热PLC型干涉仪主体的加热部分和具有比PLC型干涉仪主体更高刚度的中间部件，用于将PLC型干涉仪主体和加热部分夹在两者之间彼此粘合。 PLC型干涉仪主体与中间构件之间的线膨胀系数差等于或小于4.5×10-6 /℃，PLC型干涉仪主体与中间构件之间的热导率差相等至10W / mK以上。通过使用加热部和第二加热部来调节流过干涉仪的光信号的相位。

9. 发明申请

US20090274469A1 Polarization multiplexed optical transmitting and receiving apparatus 有权
标题翻译：极化复用光发射和接收设备
公开(公告)号：US20090274469A1
公开(公告)日：2009-11-05
申请号：US12318433
申请日：2008-12-29
申请人： Masahiro Yuki , Kentaro Nakamura , George Ishikawa
发明人： Masahiro Yuki , Kentaro Nakamura , George Ishikawa
IPC分类号： H04B10/00 , H04J14/06
CPC分类号： H04B10/0799 , H04B10/2507 , H04B10/5053 , H04J14/06
摘要： In a polarization multiplexed optical transmitting and receiving apparatus, output light from a light source section of a transmission unit is separated in a polarization separating section, and then modulated in first and second modulation sections, and the modulated lights are synthesized in a polarization synthesizing section, and transmitted to an optical transmission line. Then the polarization multiplexed light propagated through the optical transmission line is demodulated in a reception section of a reception unit, and together with this, transmission characteristic information of the reception light is transferred to the transmission unit. The transmission unit that receives the transmission characteristics information controls a delay section that adjusts a delay amount of relative phases of drive signals of the modulation sections, so that the transmission characteristics of the polarization multiplexed light are within an allowable range. As a result, pulse timing between orthogonal polarization components of the polarization multiplexed light can be flexibly changed with a simple configuration.
摘要翻译：在偏振复用光发送和接收装置中，在偏振分离部分中分离来自发送单元的光源部分的输出光，然后在第一和第二调制部分中进行调制，并将调制光合成在偏振合成部分，并传输到光传输线。然后，通过光传输线传播的偏振复用光在接收单元的接收部分被解调，并且与接收光的传输特性信息一起被传送到传输单元。接收发送特性信息的发送单元控制调整各调制部的驱动信号的相位延迟量的延迟部，使得偏振复用光的发送特性在容许范围内。结果，可以以简单的结构灵活地改变偏振复用光的正交偏振分量之间的脉冲定时。

10. 发明授权

US08086109B2 Polarization multiplexed optical transmitting and receiving apparatus 有权
标题翻译：极化复用光发射和接收设备
公开(公告)号：US08086109B2
公开(公告)日：2011-12-27
申请号：US12318433
申请日：2008-12-29
申请人： Masahiro Yuki , Kentaro Nakamura , George Ishikawa
发明人： Masahiro Yuki , Kentaro Nakamura , George Ishikawa
IPC分类号： H04J14/06 , H04B10/00 , H04B10/04
CPC分类号： H04B10/0799 , H04B10/2507 , H04B10/5053 , H04J14/06
摘要： In a polarization multiplexed optical transmitting and receiving apparatus, output light from a light source section of a transmission unit is separated in a polarization separating section, and then modulated in first and second modulation sections, and the modulated lights are synthesized in a polarization synthesizing section, and transmitted to an optical transmission line. Then the polarization multiplexed light propagated through the optical transmission line is demodulated in a reception section of a reception unit, and together with this, transmission characteristic information of the reception light is transferred to the transmission unit. The transmission unit that receives the transmission characteristics information controls a delay section that adjusts a delay amount of relative phases of drive signals of the modulation sections, so that the transmission characteristics of the polarization multiplexed light are within an allowable range. As a result, pulse timing between orthogonal polarization components of the polarization multiplexed light can be flexibly changed with a simple configuration.
摘要翻译：在偏振复用光发送和接收装置中，在偏振分离部分中分离来自发送单元的光源部分的输出光，然后在第一和第二调制部分中进行调制，并将调制光合成在偏振合成部分，并传输到光传输线。然后，通过光传输线传播的偏振复用光在接收单元的接收部分被解调，并且与接收光的传输特性信息一起被传送到传输单元。接收发送特性信息的发送单元控制调整各调制部的驱动信号的相位延迟量的延迟部，使得偏振复用光的发送特性在容许范围内。结果，可以以简单的结构灵活地改变偏振复用光的正交偏振分量之间的脉冲定时。

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