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1. 发明授权

US09166697B2 Optical transmitter and method for controlling the same 有权
标题翻译：光发射机及其控制方法
公开(公告)号：US09166697B2
公开(公告)日：2015-10-20
申请号：US14112119
申请日：2011-04-19
申请人： Emmanuel Le Taillandier de Gabory , Sadao Fujita , Kiyoshi Fukuchi
发明人： Emmanuel Le Taillandier de Gabory , Sadao Fujita , Kiyoshi Fukuchi
IPC分类号： H04B10/04 , H04B10/54 , G02F1/01 , H04B10/50
CPC分类号： H04B10/541 , G02F1/0123 , H04B10/50595
摘要： Since it is difficult to emit a stable and reliable modulated lightwave signal by means of IQ modulators used for QAM format, a method for controlling an optical transmitter according to an exemplary aspect of the invention includes the steps of (a) keeping an optical amplitude of a continuous wave light output from the optical transmitter constant, (b) making operating point values in optical modulation converge to predetermined values during step (a), and (c) modulating the continuous wave light with multiple amplitudes and phase levels around the operating point values converged in step (b).
摘要翻译：由于难以通过用于QAM格式的IQ调制器发出稳定且可靠的调制光波信号，所以根据本发明的示例性方面的用于控制光发送器的方法包括以下步骤：（a）保持光振幅从光发射器输出的连续波光恒定，（b）在步骤（a）期间使光学调制中的工作点值收敛到预定值，并且（c）调制在工作点周围具有多个幅度和相位水平的连续波光值在步骤（b）中收敛。

2. 发明授权

US09014574B2 Optical receiver, polarization demultiplexer, and optical receiving method 有权
标题翻译：光接收机，偏振解复用器和光接收方式
公开(公告)号：US09014574B2
公开(公告)日：2015-04-21
申请号：US14002266
申请日：2012-02-28
申请人： Manabu Arikawa , Daisaku Ogasahara , Emmanuel Le Taillandier de Gabory , Kiyoshi Fukuchi
发明人： Manabu Arikawa , Daisaku Ogasahara , Emmanuel Le Taillandier de Gabory , Kiyoshi Fukuchi
IPC分类号： H04B10/06 , H04J14/06 , H04B10/61
CPC分类号： H04J14/06 , H04B10/614 , H04B10/6166
摘要： In order to appropriately demultiplex the polarization multiplexed BPSK signal without using a training sequence and decreasing the resistance to a frequency offset, an optical receiver includes a coherent optical detection unit receiving an optical signal in which BPSK modulated carrier waves are polarization-multiplexed, performing coherent detection by mixing the received optical signal with local light, and outputting first electrical signals corresponding to the carrier waves; a butterfly FIR filter receiving the first electrical signals and extracting second electrical signals corresponding to each of the carrier waves from the first electrical signals; and a coefficient control unit for calculating a sum of respective phases of the second electrical signals output from the butterfly FIR filter, adaptively controlling tap coefficients of the butterfly FIR filter so that the calculated phase sum may become equal to 0 or π, and outputting tap coefficients after being controlled to the butterfly FIR filter.
摘要翻译：为了适当地解复用偏振复用的BPSK信号而不使用训练序列并降低对频偏的电阻，光接收机包括相干光检测单元，其接收光信号，其中BPSK调制载波被偏振复用，执行相干通过将接收的光信号与本地光混合来检测，并输出与载波对应的第一电信号; 蝶形FIR滤波器，接收第一电信号并从第一电信号中提取对应于每个载波的第二电信号; 以及系数控制单元，用于计算从蝶形FIR滤波器输出的第二电信号的各相的和，自适应地控制蝶形FIR滤波器的抽头系数，使得所计算的相位和可以变为等于0或者pgr;并输出抽头系数被控制到蝴蝶FIR滤波器。

3. 发明授权

US08971702B2 Method and apparatus for detecting chromatic dispersion, and method and apparatus for compensating chromatic dispersion 有权
标题翻译：用于检测色散的方法和装置，以及用于补偿色散的方法和装置
公开(公告)号：US08971702B2
公开(公告)日：2015-03-03
申请号：US13520487
申请日：2011-01-05
申请人： Emmanuel Le Taillandier De Gabory , Manabu Arikawa , Kiyoshi Fukuchi
发明人： Emmanuel Le Taillandier De Gabory , Manabu Arikawa , Kiyoshi Fukuchi
IPC分类号： H04B10/079 , H04B10/077 , G01M11/00 , H04B10/2513
CPC分类号： H04B10/0775 , G01M11/338 , H04B10/25133 , H04B2210/074
摘要： A method of monitoring chromatic dispersion when transmitting an optical signal includes: applying, to an optical signal in which the symbol rate is f, a dip in optical intensity for every n symbols by means of pseudo-RZ modulation where n is an integer equal to or greater than 2, and transmitting the optical signal to which dips have been applied to a transmission path; receiving the optical signal that is transmitted in by the transmission path and detecting the intensity of a frequency component of k*f/n from the received signal where k is an integer equal to or greater than 1; and based on the detected intensity, generating a monitor signal that represents the chromatic dispersion amount.
摘要翻译：一种在发送光信号时监视色散的方法包括：通过伪RZ调制将n个符号的符号速率为f的光信号应用于每n个符号的光强度，其中n是等于或大于2，并且将已经施加了下降的光信号发送到传输路径; 接收由传输路径发送的光信号，并从接收信号中检测k * f / n的频率分量的强度，其中k是等于或大于1的整数; 并且基于检测到的强度，产生表示色散量的监视信号。

4. 发明申请

US20140328585A1 EQUALIZATION SIGNAL PROCESSOR, OPTICAL RECEIVER INCLUDING THE SAME, AND METHOD FOR EQUALIZATION SIGNAL PROCESSING 有权
标题翻译：均衡信号处理器，包括其的光学接收器和用于均衡信号处理的方法
公开(公告)号：US20140328585A1
公开(公告)日：2014-11-06
申请号：US14362784
申请日：2011-12-07
申请人： Manabu Arikawa , Daisaku Ogasahara , Emmanuel Le Taillandier De Gabory , Kiyoshi Fukuchi
发明人： Manabu Arikawa , Daisaku Ogasahara , Emmanuel Le Taillandier De Gabory , Kiyoshi Fukuchi
IPC分类号： H04B10/61 , H04B10/079
CPC分类号： H04B10/6162 , H04B10/0795 , H04B10/616
摘要： It becomes difficult to perform the optimum equalization signal processing in coherent receiving systems if a channel response in an optical fiber transmission line includes a factor without temporal centrosymmetry, therefore, an equalization signal processor according to an exemplary aspect of the invention includes an equalization filter means configured to receive digital signals by coherent receiving systems; a coefficient control means configured to control coefficients defining characteristics of the equalization filter means; a significant coefficient holding means configured to hold significant coefficients of significant values among initial values of the coefficients; a significant coefficient positioning means configured to determine a significant coefficient position, a position of the significant coefficients in the initial values, so that equalization characteristics of the equalization filter means may be optimized; and a significant coefficient setting means configured to allocate the significant coefficients to the significant coefficient position.
摘要翻译：如果光纤传输线路中的信道响应包含没有时间中心对称性的因素，则在相干接收系统中执行最佳均衡信号处理变得困难，因此根据本发明示例性方面的均衡信号处理器包括均衡滤波器装置被配置为通过相干接收系统接收数字信号; 系数控制装置，被配置为控制限定所述均衡滤波器装置的特性的系数; 有效系数保持装置，被配置为在系数的初始值中保持有效值的有效系数; 确定有效系数位置的有效系数定位装置，初始值中有效系数的位置，使均衡滤波器装置的均衡特性可以被优化; 以及重要系数设定装置，被配置为将有效系数分配给有效系数位置。

5. 发明授权

US08989599B2 Optical communication system with monitor functions and monitoring method therefor 有权
标题翻译：具有监控功能的光通信系统及其监控方法
公开(公告)号：US08989599B2
公开(公告)日：2015-03-24
申请号：US14001226
申请日：2011-02-28
申请人： Emmanuel Le Taillandier De Gabory , Kiyoshi Fukuchi , Manabu Arikawa
发明人： Emmanuel Le Taillandier De Gabory , Kiyoshi Fukuchi , Manabu Arikawa
IPC分类号： H04B10/12 , H04B10/06 , H04B10/07 , H04B10/077
CPC分类号： H04B10/07 , H04B10/0775
摘要： Since it is difficult to fast, simply monitor impairments of received signals with higher receiver sensitivity, a monitoring method for an optical communication system according to an exemplary aspect of the invention includes the steps of emitting lightwave signals to be modulated according to a data, forming dips at transitions between temporally consecutive groups of n symbols of the lightwave signals, wherein the dips are formed at each of (n−1) first transitions of the group, no dip is formed at the n-th transition on the lightwave signals, receiving the lightwave signals, extracting frequency components characterized by the numerical value n from received lightwave signals, and monitoring the received lightwave signals by using the frequency components.
摘要翻译：由于难以快速，只需监视接收灵敏度较高的接收信号的损伤，根据本发明的示例性方面的光通信系统的监视方法包括以下步骤：根据数据发射待调制的光波信号，形成在光波信号的n个符号的时间上连续的组之间的转变处下降，其中在组的第（n-1）个第一跃迁中的每一个处形成倾斜，在光波信号的第n次跃迁上不形成倾角，接收光波信号，从接收到的光波信号中提取由数值n表征的频率分量，以及通过使用频率分量来监视所接收的光波信号。

6. 发明申请

US20120020660A1 METHOD OF AND SYSTEM FOR DETECTING SKEW BETWEEN PARALLEL SIGNALS 有权
标题翻译：用于检测并行信号之间的差异的方法和系统
公开(公告)号：US20120020660A1
公开(公告)日：2012-01-26
申请号：US13262149
申请日：2009-04-16
申请人： Emmanuel Le Taillandier De Gabory , Kiyoshi Fukuchi
发明人： Emmanuel Le Taillandier De Gabory , Kiyoshi Fukuchi
IPC分类号： H04B17/00 , H04J14/06 , H04J14/02 , H04B10/08
CPC分类号： H04B10/0775 , H04J3/0658 , H04J14/02 , H04J14/04 , H04L7/0075 , H04L25/14
摘要： A method is provided for detecting the skew between parallel light signals generated from a serial data stream. The method can be used with polarization multiplexed signal, as well as with wavelength division multiplexed signals, spatial division multiplexed signals, phase modulated signals, or intensity modulated signals. The method can be used with direct detection schemes as well as with coherent detection schemes. The method is provided with: imprinting dips between a fixed number of transmitted symbols of the parallel signals; detecting an electrical signal related to the dips for each parallel signal; and comparing the electrical signals in delay.
摘要翻译：提供了一种用于检测从串行数据流产生的平行光信号之间的偏斜的方法。该方法可以与偏振复用信号以及波分复用信号，空分复用信号，相位调制信号或强度调制信号一起使用。该方法可以与直接检测方案以及相干检测方案一起使用。该方法具有：在平行信号的固定数量的发送符号之间进行压印; 检测与每个并行信号的下降相关的电信号; 并比较电信号的延迟。

7. 发明授权

US09319141B2 Optical transmitting/receiving system and timing extracting method in optical transmitting/receiving system 有权
标题翻译：光发射/接收系统中的光发射/接收系统和定时提取方法
公开(公告)号：US09319141B2
公开(公告)日：2016-04-19
申请号：US13639829
申请日：2011-03-29
申请人： Manabu Arikawa , Emmanuel Le Taillandier De Gabory , Kiyoshi Fukuchi
发明人： Manabu Arikawa , Emmanuel Le Taillandier De Gabory , Kiyoshi Fukuchi
IPC分类号： H04B10/00 , H04B10/299 , H04B10/61 , H04L7/00 , H04B10/508 , H04L7/06 , H04L7/027
CPC分类号： H04B10/299 , H04B10/508 , H04B10/61 , H04B10/611 , H04B10/616 , H04L7/007 , H04L7/0075 , H04L7/027 , H04L7/06
摘要： An optical transmitting/receiving system using a timing extracting method that allows a feed forward type of optimized structure exhibits increased cost and increased power consumption, therefore, an optical transmitting/receiving system according to the present invention includes an optical transmitter apparatus including a light source, an optical modulator, and a pseudo RZ carver; and an optical receiver apparatus including a coherent receiver, an AD converter, a main signal processing unit, and a timing extracting unit; wherein the pseudo RZ carver forms a dip in an optical signal phase-modulated with a frequency f by the optical modulator by dropping the optical intensity at a symbol transition point to approximate zero per n-symbol interval; the AD converter outputs a sample obtained by AD converting an electrical signal which is detected and outputted by the coherent receiver; the timing extracting unit extracts a clock component of a frequency f/n from the sample and derives from the clock component a timing error signal which represents a deviation from optimum sampling timing; and the main signal processing unit adjusts a sampling timing on the basis of the timing error signal.
摘要翻译：使用允许前馈型优化结构的定时提取方法的光发送/接收系统表现出增加的成本和增加的功耗，因此，根据本发明的光发射/接收系统包括：光发射机装置，包括光源，光调制器和伪RZ雕刻机; 以及包括相干接收机，AD转换器，主信号处理单元和定时提取单元的光接收机装置; 其中所述伪RZ刻录机在通过光学调制器以频率f相位调制的光信号中形成倾角，通过将符号转换点处的光强降低到每n符号间隔近似为零; AD转换器输出通过AD转换由相干接收机检测和输出的电信号而获得的采样; 定时提取单元从样本中提取频率f / n的时钟分量，并从时钟分量导出表示与最佳采样定时偏差的定时误差信号; 并且主信号处理单元基于定时误差信号调整采样定时。

8. 发明申请

US20140029956A1 OPTICAL TRANSMITTER AND METHOD FOR CONTROLLING THE SAME 有权
标题翻译：光传输器及其控制方法
公开(公告)号：US20140029956A1
公开(公告)日：2014-01-30
申请号：US14112119
申请日：2011-04-19
申请人： Emmanuel Le Taillandier De Gabory , Sadao Fujita , Kiyoshi Fukuchi
发明人： Emmanuel Le Taillandier De Gabory , Sadao Fujita , Kiyoshi Fukuchi
IPC分类号： H04B10/54
CPC分类号： H04B10/541 , G02F1/0123 , H04B10/50595
摘要： Since it is difficult to emit a stable and reliable modulated lightwave signal by means of IQ modulators used for QAM format, a method for controlling an optical transmitter according to an exemplary aspect of the invention includes the steps of (a) keeping an optical amplitude of a continuous wave light output from the optical transmitter constant, (b) making operating point values in optical modulation converge to predetermined values during step (a), and (c) modulating the continuous wave light with multiple amplitudes and phase levels around the operating point values converged in step (b).
摘要翻译：由于难以通过用于QAM格式的IQ调制器发出稳定且可靠的调制光波信号，所以根据本发明的示例性方面的用于控制光发送器的方法包括以下步骤：（a）保持光振幅从光发射器输出的连续波光恒定，（b）在步骤（a）期间使光学调制中的工作点值收敛到预定值，并且（c）调制在工作点周围具有多个幅度和相位电平的连续波光值在步骤（b）中收敛。

9. 发明授权

US09160459B2 Equalization signal processor, optical receiver including the same, and method for equalization signal processing 有权
标题翻译：均衡信号处理器，包括相同的光接收机以及均衡信号处理方法
公开(公告)号：US09160459B2
公开(公告)日：2015-10-13
申请号：US14362784
申请日：2011-12-07
申请人： Manabu Arikawa , Daisaku Ogasahara , Emmanuel Le Taillandier De Gabory , Kiyoshi Fukuchi
发明人： Manabu Arikawa , Daisaku Ogasahara , Emmanuel Le Taillandier De Gabory , Kiyoshi Fukuchi
IPC分类号： H03H7/30 , H04B10/61 , H04B10/079
CPC分类号： H04B10/6162 , H04B10/0795 , H04B10/616
摘要： It becomes difficult to perform the optimum equalization signal processing in coherent receiving systems if a channel response in an optical fiber transmission line includes a factor without temporal centrosymmetry, therefore, an equalization signal processor according to an exemplary aspect of the invention includes an equalization filter means configured to receive digital signals by coherent receiving systems; a coefficient control means configured to control coefficients defining characteristics of the equalization filter means; a significant coefficient holding means configured to hold significant coefficients of significant values among initial values of the coefficients; a significant coefficient positioning means configured to determine a significant coefficient position, a position of the significant coefficients in the initial values, so that equalization characteristics of the equalization filter means may be optimized; and a significant coefficient setting means configured to allocate the significant coefficients to the significant coefficient position.
摘要翻译：如果光纤传输线路中的信道响应包含没有时间中心对称性的因素，则在相干接收系统中执行最佳均衡信号处理变得困难，因此，根据本发明示例性方面的均衡信号处理器包括均衡滤波器装置被配置为通过相干接收系统接收数字信号; 系数控制装置，被配置为控制限定所述均衡滤波器装置的特性的系数; 有效系数保持装置，被配置为在系数的初始值中保持有效值的有效系数; 确定有效系数位置的有效系数定位装置，初始值中有效系数的位置，使均衡滤波器装置的均衡特性可以被优化; 以及重要系数设定装置，被配置为将有效系数分配给有效系数位置。

10. 发明授权

US08971723B2 Method of and system for detecting skew between parallel signals 有权
标题翻译：用于检测并行信号之间的偏差的方法和系统
公开(公告)号：US08971723B2
公开(公告)日：2015-03-03
申请号：US13262149
申请日：2009-04-16
申请人： Emmanuel Le Taillandier De Gabory , Kiyoshi Fukuchi
发明人： Emmanuel Le Taillandier De Gabory , Kiyoshi Fukuchi
IPC分类号： H04J3/00 , H04B10/077 , H04L25/14 , H04J14/04 , H04J14/02 , H04L7/00 , H04J3/06
CPC分类号： H04B10/0775 , H04J3/0658 , H04J14/02 , H04J14/04 , H04L7/0075 , H04L25/14
摘要： A method is provided for detecting the skew between parallel light signals generated from a serial data stream. The method can be used with polarization multiplexed signal, as well as with wavelength division multiplexed signals, spatial division multiplexed signals, phase modulated signals, or intensity modulated signals. The method can be used with direct detection schemes as well as with coherent detection schemes. The method is provided with: imprinting dips between a fixed number of transmitted symbols of the parallel signals; detecting an electrical signal related to the dips for each parallel signal; and comparing the electrical signals in delay.
摘要翻译：提供了一种用于检测从串行数据流产生的平行光信号之间的偏斜的方法。该方法可以与偏振复用信号以及波分复用信号，空分复用信号，相位调制信号或强度调制信号一起使用。该方法可以与直接检测方案以及相干检测方案一起使用。该方法具有：在平行信号的固定数量的发送符号之间进行压印; 检测与每个并行信号的下降相关的电信号; 并比较电信号的延迟。

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