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1. 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。

2. 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。

3. 发明申请

US20120230682A1 SIGNAL LIGHT MONITORING APPARATUS, OPTICAL AMPLIFICATION APPARATUS AND OPTICAL RECEPTION APPARATUS, AND SIGNAL LIGHT MONITORING METHOD 有权
标题翻译：信号灯监控装置，光放大装置和光接收装置以及信号灯监测方法
公开(公告)号：US20120230682A1
公开(公告)日：2012-09-13
申请号：US13476351
申请日：2012-05-21
申请人： Masahiro YUKI , Kentaro Nakamura , George Ishikawa
发明人： Masahiro YUKI , Kentaro Nakamura , George Ishikawa
IPC分类号： H04B10/08 , H04J14/02
CPC分类号： G02B6/29385 , G02B6/2713 , G02B6/2766 , G02B6/4246 , H04B10/07955
摘要： According to an aspect of an embodiment, an apparatus includes an optical branching unit for branching an input signal light in four directions, a polarization component extraction unit extracting four polarization components having mutually different polarization parameters from lights branched in four directions by the optical branching unit, and a determination unit determining input/non-input of the signal light based on the four polarization components extracted by the polarization component extraction unit.
摘要翻译：根据实施例的一个方面，一种装置包括：用于在四个方向上分支输入信号光的光分支单元;偏振分量提取单元，通过光分路单元从四个方向分支的光中提取具有相互不同的偏振参数的四个偏振分量以及确定单元，基于由偏振分量提取单元提取的四个偏振分量来确定信号光的输入/非输入。

4. 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。

5. 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。

6. 发明申请

US20080266648A1 SIGNAL LIGHT MONITORING APPARATUS, OPTICAL AMPLIFICATION APPARATUS AND OPTICAL RECEPTION APPARATUS, AND SIGNAL LIGHT MONITORING METHOD 有权
标题翻译：信号灯监控装置，光放大装置和光接收装置和信号灯监测方法
公开(公告)号：US20080266648A1
公开(公告)日：2008-10-30
申请号：US12107202
申请日：2008-04-22
申请人： Masahiro Yuki , Kentaro Nakamura , George Ishikawa
发明人： Masahiro Yuki , Kentaro Nakamura , George Ishikawa
IPC分类号： H01S3/00 , G02B5/30
CPC分类号： G02B6/29385 , G02B6/2713 , G02B6/2766 , G02B6/4246 , H04B10/07955
摘要： According to an aspect of an embodiment, an apparatus includes an optical branching unit for branching an input signal light in four directions, a polarization component extraction unit extracting four polarization components having mutually different polarization parameters from lights branched in four directions by the optical branching unit, and a determination unit determining input/non-input of the signal light based on the four polarization components extracted by the polarization component extraction unit.
摘要翻译：根据实施例的一个方面，一种装置包括：用于在四个方向上分支输入信号光的光分支单元;偏振分量提取单元，通过光分路单元从四个方向分支的光中提取具有相互不同的偏振参数的四个偏振分量以及确定单元，基于由偏振分量提取单元提取的四个偏振分量来确定信号光的输入/非输入。

7. 发明授权

US08705168B2 Signal light monitoring apparatus, optical amplification apparatus and optical reception apparatus, and signal light monitoring method 有权
标题翻译：信号灯监视装置，光放大装置和光接收装置以及信号灯监视方法
公开(公告)号：US08705168B2
公开(公告)日：2014-04-22
申请号：US13476351
申请日：2012-05-21
申请人： Masahiro Yuki , Kentaro Nakamura , George Ishikawa
发明人： Masahiro Yuki , Kentaro Nakamura , George Ishikawa
IPC分类号： H04B10/17 , G02B5/30 , H04B10/12
CPC分类号： G02B6/29385 , G02B6/2713 , G02B6/2766 , G02B6/4246 , H04B10/07955
摘要： According to an aspect of an embodiment, an apparatus includes an optical branching unit for branching an input signal light in four directions, a polarization component extraction unit extracting four polarization components having mutually different polarization parameters from lights branched in four directions by the optical branching unit, and a determination unit determining input/non-input of the signal light based on the four polarization components extracted by the polarization component extraction unit.
摘要翻译：根据实施例的一个方面，一种装置包括：用于在四个方向上分支输入信号光的光分支单元;偏振分量提取单元，通过光分路单元从四个方向分支的光提取具有彼此不同的偏振参数的四个偏振分量以及确定单元，基于由偏振分量提取单元提取的四个偏振分量来确定信号光的输入/非输入。

8. 发明授权

US08203781B2 Signal light monitoring apparatus, optical amplification apparatus and optical reception apparatus, and signal light monitoring method 有权
标题翻译：信号灯监视装置，光放大装置和光接收装置以及信号灯监视方法
公开(公告)号：US08203781B2
公开(公告)日：2012-06-19
申请号：US12107202
申请日：2008-04-22
申请人： Masahiro Yuki , Kentaro Nakamura , George Ishikawa
发明人： Masahiro Yuki , Kentaro Nakamura , George Ishikawa
IPC分类号： H01S3/10 , G02B5/30 , H04B10/12
CPC分类号： G02B6/29385 , G02B6/2713 , G02B6/2766 , G02B6/4246 , H04B10/07955
摘要： According to an aspect of an embodiment, an apparatus includes an optical branching unit for branching an input signal light in four directions, a polarization component extraction unit extracting four polarization components having mutually different polarization parameters from lights branched in four directions by the optical branching unit, and a determination unit determining input/non-input of the signal light based on the four polarization components extracted by the polarization component extraction unit.
摘要翻译：根据实施例的一个方面，一种装置包括：用于在四个方向上分支输入信号光的光分支单元;偏振分量提取单元，通过光分路单元从四个方向分支的光中提取具有相互不同的偏振参数的四个偏振分量以及确定单元，基于由偏振分量提取单元提取的四个偏振分量来确定信号光的输入/非输入。

9. 发明授权

US07778553B2 Optical transmitter 有权
标题翻译：光发射机
公开(公告)号：US07778553B2
公开(公告)日：2010-08-17
申请号：US11599277
申请日：2006-11-15
申请人： Masahiro Yuki , Kentaro Nakamura , Hiroki Ooi , Masato Nishihara
发明人： Masahiro Yuki , Kentaro Nakamura , Hiroki Ooi , Masato Nishihara
IPC分类号： H04B10/04
CPC分类号： H04B10/5051 , H04B10/5057 , H04B10/50577 , H04B10/58
摘要： In an optical transmitter of the invention, continuous light from a light source is a (CS)RZ-D(Q)PSK modulated by two optical modulators connected in series, and a part of the optical signal output from a post-stage optical modulator is branched by an output monitor section, and the power of a preset frequency component, excluding a frequency component corresponding to a baud rate, included in an electrical spectrum acquired by photoelectrically converting the branched beams is measured. The relative phase of drive signals applied to the optical modulators is then feed-back controlled so that the power becomes a minimum. As a result, a delay shift due to a temperature change or the like between drive signals applied to respective optical modulators, can be reliably compensated.
摘要翻译：在本发明的光发射机中，来自光源的连续光是由串联连接的两个光调制器调制的（CS）RZ-D（Q）PSK，并且从后级光调制器输出的一部分光信号由输出监视部分支，并且测量包括在通过光电转换分支光束获得的电谱中的除波特率对应的频率分量之外的预设频率分量的功率。然后反馈控制施加到光学调制器的驱动信号的相对相位，使得功率变得最小。结果，可以可靠地补偿由于施加到各个光学调制器的驱动信号之间的温度变化等引起的延迟偏移。

10. 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。

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