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1. 发明公开

EP1380865A2 Adjustment method for optical circuit with cascaded Mach-Zehnder interferometers 有权
标题翻译：级联Mach-Zehnder干涉仪光路的调整方法
公开(公告)号：EP1380865A2
公开(公告)日：2004-01-14
申请号：EP03015460.3
申请日：2003-07-09
申请人： Nippon Telegraph and Telephone Corporation
发明人： Takiguchi, Koichi , Suzuki, Senichi
IPC分类号： G02B6/34
CPC分类号： G02B6/29395 , G02B6/12007 , G02B6/29355 , G02B2006/12159
摘要： A multistage Mach-Zehnder interferometer type optical circuit including any number of symmetrical Mach-Zehnder interferometers and any number of asymmetrical Mach-Zehnder interferometers connected in cascade. In the optical circuit, low coherence light is used first to obtain individual phase control conditions of the symmetrical Mach-Zehnder interferometers without being affected by the asymmetrical Mach-Zehnder interferometers. Second, phase control conditions of the individual asymmetrical Mach-Zehnder interferometers are obtained by controlling the symmetrical Mach-Zehnder interferometers based on the first phase control conditions. Finally, the characteristic adjustment of the whole multistage Mach-Zehnder interferometer type optical circuit is carried out by controlling all the interferometers based on the phase control conditions of both the symmetrical Mach-Zehnder interferometers and asymmetrical Mach-Zehnder interferometers and setting the phase shift amounts of the individual interferometers at appropriate values.
摘要翻译：一种多级Mach-Zehnder干涉仪型光路，包括任意数量的对称Mach-Zehnder干涉仪和任意数量级联的非对称Mach-Zehnder干涉仪。在光路中，首先使用低相干光来获得对称Mach-Zehnder干涉仪的各个相位控制条件，而不受非对称Mach-Zehnder干涉仪的影响。其次，通过基于第一相位控制条件控制对称Mach-Zehnder干涉仪获得各个非对称Mach-Zehnder干涉仪的相位控制条件。最后，通过根据对称Mach-Zehnder干涉仪和非对称Mach-Zehnder干涉仪的相位控制条件来控制所有干涉仪，并设置相移量，进行整个多级Mach-Zehnder干涉仪型光路的特性调整各个干涉仪的数值为适当值。

2. 发明公开

EP1132766A2 Optical signal processing device using optical gate 审中-公开
标题翻译： Optische Signalbearbeitungsvorrichtung unter Verwendung eines optischen Tores
公开(公告)号：EP1132766A2
公开(公告)日：2001-09-12
申请号：EP01105382.4
申请日：2001-03-09
申请人： Nippon Telegraph and Telephone Corporation
发明人： Saida, Takashi , Okamoto, Katsunari , Takiguchi, Koichi
IPC分类号： G02F7/00 , G02F1/21 , G02F1/313 , H04B10/20 , H04J14/08
CPC分类号： H04Q11/0003 , G02F1/313 , G02F1/3136 , G02F7/00 , G02F2001/212 , G02F2001/217 , H04Q11/0066 , H04Q2011/0041
摘要： In the disclosed optical signal processing device, the digital-to-analog conversion of the input optical signals is realized in an optical region, without converting the input optical signals into electric signals for the purpose of signal processing, by splitting input optical signals into plural sets, delaying the split optical signals for mutually different delay amounts while adjusting amplitudes of these optical signals, combining these optical signals, and gating these optical signals on a time axis. It is also possible to realize the processing of the optical signals that are multiplexed on a time axis such as interchanges of time-slots similarly.
摘要翻译：在所公开的光信号处理装置中，通过将输入光信号分割为多个，在光区域中实现输入光信号的数模转换，而不将输入光信号转换为电信号用于信号处理设置，在调整这些光信号的幅度，组合这些光信号以及在时间轴上选通这些光信号的同时延迟分开的光信号以相互不同的延迟量。也可以类似地实现在诸如时隙的交换的时间轴上复用的光信号的处理。

3. 发明公开

EP1115222A2 CDMA encoder-decoder, CDMA communication system, WDM-CDMA communication system 有权
标题翻译： CDMA Kodierer-Dekodierer，CDMANachrichtenübertragungssystem，WDM-CDMANachrichtenübertragungssystem
公开(公告)号：EP1115222A2
公开(公告)日：2001-07-11
申请号：EP00311772.8
申请日：2000-12-29
申请人： Nippon Telegraph and Telephone Corporation
发明人： Takiguchi, Koichi , Okamoto, Katsunari , Shibata, Tomohiro , Kato, Masao , Goh, Takashi
IPC分类号： H04J13/00 , H04J14/02 , H04Q11/00 , G02B6/34
CPC分类号： G02B6/12021 , G02B6/2861 , H04J14/005 , H04J14/02
摘要： An optical CDMA encoder-decoder is constructed by combining arrayed-waveguide gratings, matrix optical switches, and delay lines, otherwise by combining arrayed-waveguide gratings and variable delay lines, thus providing an encoding process that a wavelength change with respect to time in optical pulses.
摘要翻译：通过组合阵列波导光栅，矩阵光开关和延迟线，否则通过组合阵列波导光栅和可变延迟线来构造光CDMA编码器解码器，从而提供编码过程，波长相对于时间在光学中变化脉冲。

4. 发明授权

EP1094625B1 Dispersion slope equalizer 有权
标题翻译：色散斜率均衡器
公开(公告)号：EP1094625B1
公开(公告)日：2010-06-09
申请号：EP00309165.9
申请日：2000-10-18
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Takiguchi, Koichi , Okamoto, Katsunari , Goh, Takashi
IPC分类号： H04B10/18 , G02B6/34
CPC分类号： G02B6/29394 , G02B6/12007 , G02B6/12021 , G02B6/29353 , G02B6/29355 , G02B6/29395 , G02B6/29398 , H04B10/25133 , H04B2210/258

5. 发明授权

EP1380865B1 Adjustment method for optical circuit with cascaded Mach-Zehnder interferometers 有权
标题翻译：用于与级联马赫 - 曾德干涉仪光路的调谐方法
公开(公告)号：EP1380865B1
公开(公告)日：2006-11-22
申请号：EP03015460.3
申请日：2003-07-09
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Takiguchi, Koichi , Suzuki, Senichi
IPC分类号： G02B6/34
CPC分类号： G02B6/29395 , G02B6/12007 , G02B6/29355 , G02B2006/12159

6. 发明公开

EP1132766A3 Optical signal processing device using optical gate 审中-公开
标题翻译：使用光门的光学信号处理装置
公开(公告)号：EP1132766A3
公开(公告)日：2005-04-20
申请号：EP01105382.4
申请日：2001-03-09
申请人： Nippon Telegraph and Telephone Corporation
发明人： Saida, Takashi , Okamoto, Katsunari , Takiguchi, Koichi
IPC分类号： G02F7/00 , G02F1/21 , G02F1/313 , H04B10/20 , H04J14/08
CPC分类号： H04Q11/0003 , G02F1/313 , G02F1/3136 , G02F7/00 , G02F2001/212 , G02F2001/217 , H04Q11/0066 , H04Q2011/0041
摘要： In the disclosed optical signal processing device, the digital-to-analog conversion of the input optical signals is realized in an optical region, without converting the input optical signals into electric signals for the purpose of signal processing, by splitting input optical signals into plural sets, delaying the split optical signals for mutually different delay amounts while adjusting amplitudes of these optical signals, combining these optical signals, and gating these optical signals on a time axis. It is also possible to realize the processing of the optical signals that are multiplexed on a time axis such as interchanges of time-slots similarly.

7. 发明授权

EP1115222B1 CDMA encoder-decoder, CDMA communication system, WDM-CDMA communication system 有权
标题翻译： CDMA编码器 - 译码器，CDMA消息传输系统，WDM-CDMA通信系统
公开(公告)号：EP1115222B1
公开(公告)日：2008-07-02
申请号：EP00311772.8
申请日：2000-12-29
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Takiguchi, Koichi , Okamoto, Katsunari , Shibata, Tomohiro , Kato, Masao , Goh, Takashi
IPC分类号： H04J13/00 , H04J14/02 , G02B6/34 , H04J14/00 , G02B6/28 , H04Q11/00
CPC分类号： G02B6/12021 , G02B6/2861 , H04J14/005 , H04J14/02

8. 发明公开

EP1094625A3 Dispersion slope equalizer 有权
标题翻译： Dispersionsgradiententzerrer
公开(公告)号：EP1094625A3
公开(公告)日：2004-01-02
申请号：EP00309165.9
申请日：2000-10-18
申请人： Nippon Telegraph and Telephone Corporation
发明人： Takiguchi, Koichi , Okamoto, Katsunari , Goh, Takashi
IPC分类号： H04B10/18 , G02B6/34
CPC分类号： G02B6/29394 , G02B6/12007 , G02B6/12021 , G02B6/29353 , G02B6/29355 , G02B6/29395 , G02B6/29398 , H04B10/25133 , H04B2210/258
摘要： The object of the present invention is to provide a compact dispersion slope equalizer by which it is possible to simultaneously recover distorted waveforms of WDM signals by dispersion slope of DSF or NZ-DSF at 1.55 µm band, and to compensate for the dispersion of various fiber transmission lines having various dispersion values and variation of dispersion value caused by the temperature change or the like. WDM signals distorted by the dispersion slope of the fiber are introduced into an input waveguide (1, 20), and are demultiplexed by a wavelength demultiplexer (2, 21) into each wavelength component, and pass through lattice-form optical circuits (4-1 to 4-N), transversal-form optical circuits (23-1 to 23-N), or the combination of these circuits. The dispersion slope of the signals is compensated for by these circuits. The recovered signals are multiplexed by a wavelength multiplexer (5, 24), and the multiplexed light is outputted at an output waveguide (6, 25). Arrayed-waveguide gratings can be used as the wavelength demultiplexer and multiplexer. Also, cascaded configuration of Mach-Zehnder interferometers, bulk-type optical filters, or fiber-type (or waveguide-type) gratings in series can also be used as the wavelength demultiplexer and multiplexer.

9. 发明公开

EP1094625A2 Dispersion slope equalizer 有权
标题翻译：色散斜率均衡器
公开(公告)号：EP1094625A2
公开(公告)日：2001-04-25
申请号：EP00309165.9
申请日：2000-10-18
申请人： Nippon Telegraph and Telephone Corporation
发明人： Takiguchi, Koichi , Okamoto, Katsunari , Goh, Takashi
IPC分类号： H04B10/18
CPC分类号： G02B6/29394 , G02B6/12007 , G02B6/12021 , G02B6/29353 , G02B6/29355 , G02B6/29395 , G02B6/29398 , H04B10/25133 , H04B2210/258
摘要： The object of the present invention is to provide a compact dispersion slope equalizer by which it is possible to simultaneously recover distorted waveforms of WDM signals by dispersion slope of DSF or NZ-DSF at 1.55 µm band, and to compensate for the dispersion of various fiber transmission lines having various dispersion values and variation of dispersion value caused by the temperature change or the like. WDM signals distorted by the dispersion slope of the fiber are introduced into an input waveguide (1, 20), and are demultiplexed by a wavelength demultiplexer (2, 21) into each wavelength component, and pass through lattice-form optical circuits (4-1 to 4-N), transversal-form optical circuits (23-1 to 23-N), or the combination of these circuits. The dispersion slope of the signals is compensated for by these circuits. The recovered signals are multiplexed by a wavelength multiplexer (5, 24), and the multiplexed light is outputted at an output waveguide (6, 25). Arrayed-waveguide gratings can be used as the wavelength demultiplexer and multiplexer. Also, cascaded configuration of Mach-Zehnder interferometers, bulk-type optical filters, or fiber-type (or waveguide-type) gratings in series can also be used as the wavelength demultiplexer and multiplexer.
摘要翻译：本发明的目的是提供一种紧凑的色散斜率均衡器，利用该色散斜率均衡器可以通过DSF或NZ-DSF的色散斜率在1.55μm波段同时恢复WDM信号的失真波形，并且补偿各种光纤的色散具有各种色散值的传输线和由温度变化等引起的色散值的变化。由光纤的色散斜率失真的WDM信号被引入到输入波导（1,20）中，并且由波长多路分解器（2,21）解复用成每个波长分量，并且通过格型光电路（4- 1到4-N），横向形式的光电路（23-1到23-N）或这些电路的组合。信号的色散斜率由这些电路补偿。恢复的信号由波长复用器（5,24）复用，并且复用光在输出波导（6,25）处输出。阵列波导光栅可以用作波长解复用器和复用器。此外，也可以使用马赫 - 策德尔干涉仪，体型滤光器或串联的光纤型（或波导型）光栅的级联结构作为波长多路解复用器和多路复用器。

10. 发明公开

EP1115222A3 CDMA encoder-decoder, CDMA communication system, WDM-CDMA communication system 有权
标题翻译： CDMA Kodierer-Dekodierer，CDMANachrichtenübertragungssystem和WDM-CDMANachrichtenübertragungssystem
公开(公告)号：EP1115222A3
公开(公告)日：2005-10-05
申请号：EP00311772.8
申请日：2000-12-29
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Takiguchi, Koichi , Okamoto, Katsunari , Shibata, Tomohiro , Kato, Masao , Goh, Takashi
IPC分类号： H04J13/00 , H04J14/02 , G02B6/34 , H04J14/00 , G02B6/28 , H04Q11/00
CPC分类号： G02B6/12021 , G02B6/2861 , H04J14/005 , H04J14/02
摘要： An optical CDMA encoder-decoder is constructed by combining arrayed-waveguide gratings, matrix optical switches, and delay lines, otherwise by combining arrayed-waveguide gratings and variable delay lines, thus providing an encoding process that a wavelength change with respect to time in optical pulses.
摘要翻译：通过组合阵列波导光栅，矩阵光开关和延迟线，否则通过组合阵列波导光栅和可变延迟线来构造光CDMA编码器解码器，从而提供编码过程，波长相对于时间在光学中变化脉冲。

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