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1. 发明授权

US08577225B2 Optical receiver 有权
标题翻译：光接收机
公开(公告)号：US08577225B2
公开(公告)日：2013-11-05
申请号：US12935252
申请日：2009-03-25
申请人： Masahito Mure , Norikazu Miyazaki , Toshio Kataoka , Kaoru Higuma
发明人： Masahito Mure , Norikazu Miyazaki , Toshio Kataoka , Kaoru Higuma
IPC分类号： H04B10/06 , G01B9/02
CPC分类号： H04B10/677
摘要： Provided is an optical receiver which accurately demodulates an optical signal obtained by the differential phase shift modulation method. The optical receiver includes: an interferometer which branches the inputted optical signal into two parts and gives a one-bit phase difference to the resultant two optical signals so that the two optical signals after addition of the phase difference are made to interfere each other to output two output lights; reflection means which reflects one of the output lights from the interferometer so as to return to the interferometer; detection means which detects the return light which has been reflected by the reflection means and propagates through the interferometer in the different direction from the inputted optical signal, for output; and phase difference control means which adjusts the phase difference given by the interferometer according to the intensity of the return light detected by the detection means.
摘要翻译：提供了一种能够对由差分相移调制方法获得的光信号进行精确解调的光接收机。光接收机包括：干涉仪，其将输入的光信号分成两部分，并给出所得到的两个光信号的一位相位差，使得相加后的两个光信号相互干扰以输出两路输出灯; 反射装置，其反射来自干涉仪的输出光之一以返回到干涉仪; 检测装置，其检测已经被反射装置反射的返回光，并且沿与所输入的光信号不同的方向通过干涉仪传播; 以及相位差控制装置，其根据由检测装置检测到的返回光的强度来调整由干涉仪给出的相位差。

2. 发明申请

US20120301158A1 Optical Receiver 审中-公开
标题翻译：光接收机
公开(公告)号：US20120301158A1
公开(公告)日：2012-11-29
申请号：US13576531
申请日：2010-02-01
申请人： Masahito Mure , Kaoru Higuma , Toshio Kataoka , Norikazu Miyazaki , Masahide Miyachi , Youichi Oikawa , Noriyasu Shiga , Hiroshi Nagaeda
发明人： Masahito Mure , Kaoru Higuma , Toshio Kataoka , Norikazu Miyazaki , Masahide Miyachi , Youichi Oikawa , Noriyasu Shiga , Hiroshi Nagaeda
IPC分类号： H04B10/06
CPC分类号： H04B10/677
摘要： An optical receiver includes interference means 2 for branching the optical signal modulated in a DQPSK manner into two light beams, delaying at least one branched light beam so that two branched light beams have a predetermined phase difference, rotating the polarization plane of at least one branched light beam so that the polarization planes of the two branched light beams are orthogonal to each other, and coupling the two branched light beams, light separation adjusting means 3 to 5 for separating the output light beam from the interference means and adjusting the polarization planes of the separated light beams, and detection means 6 and 6′ for detecting light intensities of the separated light beams output from the light separation adjusting means, wherein an I-component signal and a Q-component signal are generated on the basis of detection signals from the detection means.
摘要翻译：光接收机包括干扰装置2，用于将以DQPSK方式调制的光信号分支成两个光束，延迟至少一个分支光束，使得两个分支光束具有预定的相位差，旋转至少一个分支的偏振面光束使得两个分支光束的偏振平面彼此正交，并且耦合两个分支光束，光分离调节装置3至5，用于将输出光束与干涉装置分离并调整偏振面分离的光束，以及用于检测从光分离调节装置输出的分离的光束的光强度的检测装置6和6'，其中基于来自光分离调节装置的检测信号产生I分量信号和Q分量信号检测装置。

3. 发明申请

US20110075149A1 OPTICAL RECEIVER 有权
标题翻译：光接收机
公开(公告)号：US20110075149A1
公开(公告)日：2011-03-31
申请号：US12935252
申请日：2009-03-25
申请人： Masahito Mure , Norikazu Miyazaki , Toshio Kataoka , Kaoru Higuma
发明人： Masahito Mure , Norikazu Miyazaki , Toshio Kataoka , Kaoru Higuma
IPC分类号： G01B9/02
CPC分类号： H04B10/677
摘要： Provided is an optical receiver which accurately demodulates an optical signal obtained by the differential phase shift modulation method. The optical receiver includes: an interferometer which branches the inputted optical signal into two parts and gives a one-bit phase difference to the resultant two optical signals so that the two optical signals after addition of the phase difference are made to interfere each other to output two output lights; reflection means which reflects one of the output lights from the interferometer so as to return to the interferometer; detection means which detects the return light which has been reflected by the reflection means and propagates through the interferometer in the different direction from the inputted optical signal, for output; and phase difference control means which adjusts the phase difference given by the interferometer according to the intensity of the return light detected by the detection means.
摘要翻译：提供了一种能够对由差分相移调制方法获得的光信号进行精确解调的光接收机。光接收机包括：干涉仪，其将输入的光信号分成两部分，并给出所得到的两个光信号的一位相位差，使得相加后的两个光信号相互干扰以输出两路输出灯; 反射装置，其反射来自干涉仪的输出光之一以返回到干涉仪; 检测装置，其检测已经被反射装置反射的返回光，并且沿与所输入的光信号不同的方向通过干涉仪传播; 以及相位差控制装置，其根据由检测装置检测到的返回光的强度来调整由干涉仪给出的相位差。

4. 发明申请

US20110052212A1 Optical receiver 失效
标题翻译：光接收机
公开(公告)号：US20110052212A1
公开(公告)日：2011-03-03
申请号：US12661884
申请日：2010-03-25
申请人： Masahito Mure , Masahide Miyachi , Kaoru Higuma , Norikazu Miyazaki , Toshio Kataoka , Hiroyuki Sato , Hiroshi Nagaeda , Noriyasu Shiga , Yoichi Oikawa
发明人： Masahito Mure , Masahide Miyachi , Kaoru Higuma , Norikazu Miyazaki , Toshio Kataoka , Hiroyuki Sato , Hiroshi Nagaeda , Noriyasu Shiga , Yoichi Oikawa
IPC分类号： H04B10/06
CPC分类号： H04B10/677
摘要： The present invention relates to an optical receiver, and particularly, to an optical receiver by which a DQPSK-modulated optical signal is demodulated to a multilevel phase-modulated signal.
摘要翻译：光接收机技术领域本发明涉及一种光接收机，特别涉及将DQPSK调制光信号解调为多电平相位调制信号的光接收机。

5. 发明授权

US08180226B2 Optical receiver 失效
标题翻译：光接收机
公开(公告)号：US08180226B2
公开(公告)日：2012-05-15
申请号：US12661884
申请日：2010-03-25
申请人： Masahito Mure , Masahide Miyachi , Kaoru Higuma , Norikazu Miyazaki , Toshio Kataoka , Hiroyuki Sato , Hiroshi Nagaeda , Noriyasu Shiga , Yoichi Oikawa
发明人： Masahito Mure , Masahide Miyachi , Kaoru Higuma , Norikazu Miyazaki , Toshio Kataoka , Hiroyuki Sato , Hiroshi Nagaeda , Noriyasu Shiga , Yoichi Oikawa
IPC分类号： H04B10/06
CPC分类号： H04B10/677
摘要： The present invention relates to an optical receiver, and particularly, to an optical receiver by which a DQPSK-modulated optical signal is demodulated to a multilevel phase-modulated signal.
摘要翻译：光接收机技术领域本发明涉及一种光接收机，特别涉及将DQPSK调制光信号解调为多电平相位调制信号的光接收机。

6. 发明授权

US07751724B2 Optical modulator 有权
标题翻译：光调制器
公开(公告)号：US07751724B2
公开(公告)日：2010-07-06
申请号：US11624887
申请日：2007-01-19
申请人： Yoshihiro Hashimoto , Shingo Mori , Norikazu Miyazaki , Kaoru Higuma , Toshio Sakane
发明人： Yoshihiro Hashimoto , Shingo Mori , Norikazu Miyazaki , Kaoru Higuma , Toshio Sakane
IPC分类号： H04B10/04
CPC分类号： G02F1/2255 , H04B10/505 , H04B10/5053 , H04B10/5165
摘要： An optical modulator is provided which includes: an optical splitting part that splits an input light wave into two light waves; two optical waveguides that propagate the two light waves into which the input light wave is split, respectively; a first SSB modulating part that is provided in one of the two optical waveguides and modulates a light wave, which propagates into the first SSB modulating part, with a carrier frequency so that the light wave is converted into a different light wave having a single side band; a second SSB modulating part that is provided in the other of the two optical waveguides and modulates a light wave, which propagates into the second SSB modulating part, with a data signal in order to generate a signal light wave having a different single side band; and an optical combining part that combines the light wave modulated by the first SSB modulating part with the signal light wave generated by the second SSB modulating part.
摘要翻译：提供了一种光调制器，其包括：将输入光波分成两个光波的光分裂部分; 分别传播输入光波被分裂成的两个光波的两个光波导; 设置在两个光波导中的一个中的第一SSB调制部分，以载波频率调制传播到第一SSB调制部分的光波，使得光波被转换为具有单侧的不同光波带; 设置在所述两个光波导中的另一个中的第二SSB调制部分，并且利用数据信号调制传播到所述第二SSB调制部分的光波，以产生具有不同单边带的信号光波; 以及光合成部，其将由第一SSB调制部调制的光波与由第二SSB调制部生成的信号光波组合。

7. 发明申请

US20060285787A1 Optical modulator 有权
标题翻译：光调制器
公开(公告)号：US20060285787A1
公开(公告)日：2006-12-21
申请号：US11315615
申请日：2005-12-22
申请人： Toshio Sakane , Norikazu Miyazaki , Kaoru Higuma , Shingo Mori
发明人： Toshio Sakane , Norikazu Miyazaki , Kaoru Higuma , Shingo Mori
IPC分类号： G02F1/035
CPC分类号： G02F1/225 , G02F1/035 , G02F2001/212
摘要： An optical modulator which magnifies a modulation index and reduces affection of SBS by suppressing a light source carrier component in an equivalent light source spectral width and performs more long-distance transmission by suppressing one of sideband spectrums generated by a modulation signal to reduce affection of fiber dispersion, having a light branch means that branches input light having a carrier component into two light waves; a SSB modulation means that modulates one branched wave and generates a wave having the carrier component and one sideband spectrum; an intensity adjustment means that adjusts intensity of the carrier component of the other wave; a phase adjustment means that adjusts the phase of the carrier component with respect to at least one of the two waves; and a multiplexing means that multiplexes the two waves passing through the modulation means, and the intensity and phase adjustment means, and emits output light.
摘要翻译：一种光调制器，其通过抑制等效光源光谱宽度中的光源载体分量来放大调制指数并降低SBS的影响，并且通过抑制由调制信号产生的边带频谱之一来执行更多的长距离传输，以减少光纤的影响具有光分支的分散装置，其将具有载体分量的输入光分支成两个光波; SSB调制装置，其调制一个分支波并产生具有载波分量和一个边带频谱的波; 强度调节装置，其调整另一波的载波分量的强度; 相位调整装置，相对于两个波中的至少一个调整载波分量的相位; 以及多路复用装置，其将通过调制装置的两个波和强度和相位调节装置进行多路复用，并发射输出光。

8. 发明授权

US07302120B2 Optical modulator 有权
标题翻译：光调制器
公开(公告)号：US07302120B2
公开(公告)日：2007-11-27
申请号：US11315615
申请日：2005-12-22
申请人： Toshio Sakane , Norikazu Miyazaki , Kaoru Higuma , Shingo Mori
发明人： Toshio Sakane , Norikazu Miyazaki , Kaoru Higuma , Shingo Mori
IPC分类号： G02F1/035
CPC分类号： G02F1/225 , G02F1/035 , G02F2001/212
摘要： An optical modulator which magnifies a modulation index and reduces affection of SBS by suppressing a light source carrier component in an equivalent light source spectral width and performs more long-distance transmission by suppressing one of sideband spectrums generated by a modulation signal to reduce affection of fiber dispersion, having a light branch means that branches input light having a carrier component into two light waves; a SSB modulation means that modulates one branched wave and generates a wave having the carrier component and one sideband spectrum; an intensity adjustment means that adjusts intensity of the carrier component of the other wave; a phase adjustment means that adjusts the phase of the carrier component with respect to at least one of the two waves; and a multiplexing means that multiplexes the two waves passing through the modulation means, and the intensity and phase adjustment means, and emits output light.
摘要翻译：一种光调制器，其通过抑制等效光源光谱宽度中的光源载体分量来放大调制指数并降低SBS的影响，并且通过抑制由调制信号产生的边带频谱之一来执行更多的长距离传输，以减少光纤的影响具有光分支的分散装置，其将具有载体分量的输入光分支成两个光波; SSB调制装置，其调制一个分支波并产生具有载波分量和一个边带频谱的波; 强度调节装置，其调整另一波的载波分量的强度; 相位调整装置，相对于两个波中的至少一个调整载波分量的相位; 以及多路复用装置，其将通过调制装置的两个波和强度和相位调节装置进行多路复用，并发射输出光。

9. 发明授权

US07768696B2 THZ wave generator 有权
标题翻译： THZ波发生器
公开(公告)号：US07768696B2
公开(公告)日：2010-08-03
申请号：US11547342
申请日：2005-03-24
申请人： Kaoru Higuma , Junichiro Ichikawa , Shingo Mori
发明人： Kaoru Higuma , Junichiro Ichikawa , Shingo Mori
IPC分类号： G02F2/00 , H01S4/00
CPC分类号： G02F1/3534 , G02F1/011 , G02F1/225 , G02F2203/13
摘要： The present invention purposes to provide a THz-wave generator capable of generating a THz-wave stably and efficiently, and particularly, to provide the THz-wave generator which is stable against a frequency shift of a laser source and which can easily vary the frequency of the THz-wave.A THz-wave generator, for inputting a laser beam from a light source unit A including a laser source to a THz-wave generating element D, and generating a THz-wave (fT) from the THz-wave generating element, wherein a light circulating unit including an SSB optical modulator, and wavelength selecting means C are disposed between the laser source A and the THz-wave generating element D, the laser beam is guided into the light circulating unit, a specific wavelength lightwave is selected out of lightwaves having a plurality of wavelengths generated in the light circulating unit by the wavelength selecting means, and the specific wavelength (f0, fn) lightwave is input to the THz-wave generating element.
摘要翻译：本发明的目的是提供一种能够稳定有效地产生太赫兹波的太赫兹波发生器，特别是为了提供对于激光源的频移稳定的THz波发生器，并且可以容易地改变频率的太赫兹波。一种太赫兹波发生器，用于将包括激光源的光源单元A的激光束输入到太赫兹波发生元件D，并从所述THz波发生元件产生THz波（fT），其中，光包括SSB光调制器的循环单元和波长选择装置C设置在激光源A和THz波发生元件D之间，激光束被引导到光循环单元中，从具有波长选择装置C的光波中选出特定波长的光波，通过波长选择装置在光循环单元中产生的多个波长和特定波长（f0，fn）光波被输入到THz波发生元件。

10. 发明申请

US20080267565A1 Y-Junction Reflector Tunable Delay or Resonator Waveguide Devices 失效
标题翻译： Y型结反射器可调谐延迟或谐振器波导器件
公开(公告)号：US20080267565A1
公开(公告)日：2008-10-30
申请号：US11628572
申请日：2005-06-01
申请人： Jianxiao Chen , Paul Kit Lai Yu , Tetsuya Kawanishi , Kaoru Higuma
发明人： Jianxiao Chen , Paul Kit Lai Yu , Tetsuya Kawanishi , Kaoru Higuma
IPC分类号： G02B6/42
CPC分类号： G02F1/035 , G02F1/3136 , G02F1/3137 , G02F2001/212 , G02F2201/16 , G02F2201/34 , G02F2203/50
摘要： The invention provides tunable delay or resonator devices in an electro optical substrate. Signals in at least one waveguide in the electro optical substrate pass through Y-junction reflectors which direct signals from one branch of the waveguide back into another branch of the waveguide. A coupled delay or resonator approximated loop is presented in an embodiment of the invention with opposing Y-junction reflectors. In other embodiments of the invention, a delay ladder is provided with selectable levels of delay from multiple outputs.
摘要翻译：本发明在电光学衬底中提供可调延迟或谐振器装置。在电光学衬底中的至少一个波导中的信号通过Y形结反射器，其将信号从波导的一个分支引导回到波导的另一分支。耦合延迟或谐振器近似环在本发明的具有相对的Y结反射器的实施例中呈现。在本发明的其它实施例中，向多个输出端提供延迟梯形图，其具有可选择的延迟级别。

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