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11.发明授权Optical receiver for controlling wavelength of local oscillation light and local oscillation light control method 有权用于控制本地振荡光的波长的光接收器和本地振荡光控制方法公开(公告)号：US08391725B2
公开(公告)日：2013-03-05
申请号：US12496274
申请日：2009-07-01
IPC分类号： H04B10/06
CPC分类号： H04B10/613 , H04B10/60 , H04B10/64
摘要： While altering a plurality of wavelength setting parameters according to a control sequence, a local oscillation light having a wavelength controlled by those wavelength setting parameters is generated. Further, the received signal light and the generated local oscillation light are mixed, and if an electric signal is generated by photoelectric conversion from the resulting light, then the wavelength control of the local oscillation light is terminated.
摘要翻译： 在根据控制序列改变多个波长设置参数的同时，产生具有由这些波长设置参数控制的波长的本地振荡光。 此外，接收的信号光和产生的本地振荡光被混合，并且如果通过从所得到的光的光电转换产生电信号，则终止本地振荡光的波长控制。
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公开(公告)号：US08351795B2
公开(公告)日：2013-01-08
申请号：US12219863
申请日：2008-07-29
IPC分类号： H04B10/00
CPC分类号： H04B10/2572 , H04B10/532 , H04B10/5561
摘要： An optical transmission system, where in an optical transmitter a detection bit having a specific pattern set according to the number of bits to be transmitted within one symbol time, is imparted with respect to a transmission signal in which transmission information has been encoded according to a preset format, and an optical signal generated by modulating light according to the transmission signal is transmitted to a transmission line. In an optical receiver, logic inversion or bit swap of received data is detected and compensated by using the detection bit included in the received signal, a decoding process of the compensated received signal is executed. As a result, when an optical signal capable of transmitting multi-bit information within one symbol time is transferred, it is possible to realize excellent transmission characteristics, by reliably compensating an error in received data caused by the modulation format or the multiplex system of the optical signal.
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公开(公告)号：US08086113B2
公开(公告)日：2011-12-27
申请号：US12104056
申请日：2008-04-16
IPC分类号： H04B10/00
CPC分类号： H04B10/611 , H04B10/60 , H04B10/6165
摘要： An optical mixing part mixing a received optical signal and local oscillator light in at least two kinds of phases and extracting at least two-system optical signals corresponding to each light phase; a photoelectric conversion part converting the at least two-system optical signals obtained in the optical mixing part into electric analog signals; an analog-to-digital conversion part converting the electric analog signals into digital signals; and a control part processing the digital signals thereby detecting a light phase difference between the respective systems in the optical mixing part and supplying a signal for correcting the light phase between the systems to the optical mixing part to control the optical mixing part so that the light phase difference becomes to zero or close to a desired value when the light phase difference has a shift from the desired value.
摘要翻译： 一种光混合部分，将接收的光信号和至少两相的本地振荡光混合，并提取与每个光相对应的至少两系统的光信号; 将所述光混合部中获得的所述至少两系统的光信号转换成电模拟信号的光电转换部; 模拟数字转换部分将电模拟信号转换为数字信号; 以及控制部分处理数字信号，从而检测光混合部分中的各个系统之间的光相位差，并将用于校正系统之间的光相位的信号提供给光学混合部分，以控制光学混合部分，使得光 当光相位差从期望值偏移时，相位差变为零或接近期望值。
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公开(公告)号：US20090087194A1
公开(公告)日：2009-04-02
申请号：US12219863
申请日：2008-07-29
IPC分类号： H04B10/00
CPC分类号： H04B10/2572 , H04B10/532 , H04B10/5561
摘要： An optical transmission system, where in an optical transmitter a detection bit having a specific pattern set according to the number of bits to be transmitted within one symbol time, is imparted with respect to a transmission signal in which transmission information has been encoded according to a preset format, and an optical signal generated by modulating light according to the transmission signal is transmitted to a transmission line. In an optical receiver, logic inversion or bit swap of received data is detected and compensated by using the detection bit included in the received signal, a decoding process of the compensated received signal is executed. As a result, when an optical signal capable of transmitting multi-bit information within one symbol time is transferred, it is possible to realize excellent transmission characteristics, by reliably compensating an error in received data caused by the modulation format or the multiplex system of the optical signal.
摘要翻译： 一种光传输系统，其中在光发射机中，根据在一个符号时间内要发送的比特数的数量，具有特定模式集的检测比特，根据发送信号已被编码的发送信号 预设格式和根据发送信号调制光产生的光信号被发送到传输线。 在光接收机中，通过使用包含在接收信号中的检测位来检测和补偿接收数据的逻辑反转或位交换，执行经补偿的接收信号的解码处理。 结果，当在一个符号时间内能够发送多位信息的光信号被传送时，通过可靠地补偿由调制格式或多路复用系统引起的接收数据中的错误，可以实现优异的传输特性 光信号。
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公开(公告)号：US20090060508A1
公开(公告)日：2009-03-05
申请号：US12155262
申请日：2008-05-30
IPC分类号： H04J14/06
CPC分类号： H04J14/06 , H04B10/505 , H04B10/532 , H04B10/541 , H04B10/548 , H04B10/5561 , H04J14/08 , H04L5/04
摘要： A polarization multiplexing and transmitting apparatus generates polarization multiplexed light by multiplexing modulated signal components that having varying intensities and are in polarization states orthogonal to each other. The polarization multiplexing and transmitting apparatus includes a converting unit that converts light generated by a light source into signal components having a varying intensity synchronized with a clock signal input thereto and a varying intensity inversely synchronized with the clock signal, respectively; a modulating unit that modulates the signal components, respectively; and a polarization adjusting unit that orthogonalizes polarization states of the signal components.
摘要翻译： 偏振复用和发送装置通过对具有变化的强度并且处于彼此正交的偏振状态的调制信号分量进行多路复用来产生偏振复用光。 偏振复用和发送装置包括转换单元，其将由光源产生的光变换成具有与输入的时钟信号同步的变化强度的信号分量和与时钟信号反向同步的变化强度; 调制单元，分别调制信号分量; 以及使信号分量的偏振态正交化的偏振调整单元。
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16.发明授权Optical transmission/reception system, optical transmitter, optical receiver, and optical transmission/reception method 有权光传输/接收系统，光发射机，光接收机，光传输/接收方式公开(公告)号：US08942569B2
公开(公告)日：2015-01-27
申请号：US12581413
申请日：2009-10-19
CPC分类号： H04B10/541 , H04B10/5055 , H04B10/532 , H04B10/60 , H04B2210/254
摘要： An optical transmission/reception system includes a modulator for modulating light based on data to output signal light; a transmission-side signal processor performing transmission-side digital signal processing which imparts a polarization change to the signal light by the optical modulation with respect to an input signal; an optical transmitter in which the modulator performs the optical modulation based on the input signal subjected to the transmission-side digital signal processing in the transmission-side signal processor; and an optical receiver including a converter converting the signal light inputted from the optical transmitter via a transmission path to a digital electric signal for each polarization component, and a reception-side signal processor performing reception-side digital signal processing which imparts a polarization change having a property substantially inverse to a property of the polarization change in the transmission-side signal processor with respect to the digital electric signal from the converter.
摘要翻译： 光发送/接收系统包括：调制器，用于根据数据调制光以输出信号光; 执行发送侧数字信号处理的发送侧信号处理器，其相对于输入信号通过光调制而赋予信号光的偏振变化; 光发送器，其中调制器基于在发送侧信号处理器中进行发送侧数字信号处理的输入信号执行光调制; 以及光接收器，其包括将从所述光发送器输入的信号光经由传输路径转换为每个偏振分量的数字电信号的转换器，以及执行接收侧数字信号处理的接收侧信号处理器， 与传输侧信号处理器相对于来自转换器的数字电信号的偏振变化的特性基本上相反的特性。
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公开(公告)号：US20110274430A1
公开(公告)日：2011-11-10
申请号：US13137024
申请日：2011-07-15
IPC分类号： H04J14/06
CPC分类号： H04B10/2572 , H04B10/532 , H04B10/5561
摘要： An optical transmission system, where in an optical transmitter a detection bit having a specific pattern set according to the number of bits to be transmitted within one symbol time, is imparted with respect to a transmission signal in which transmission information has been encoded according to a preset format, and an optical signal generated by modulating light according to the transmission signal is transmitted to a transmission line. In an optical receiver, logic inversion or bit swap of received data is detected and compensated by using the detection bit included in the received signal, a decoding process of the compensated received signal is executed. As a result, when an optical signal capable of transmitting multi-bit information within one symbol time is transferred, it is possible to realize excellent transmission characteristics, by reliably compensating an error in received data caused by the modulation format or the multiplex system of the optical signal.
摘要翻译： 一种光传输系统，其中在光发射机中，根据在一个符号时间内要发送的比特数的数量，具有特定模式集的检测比特，根据发送信号已被编码的发送信号 预设格式和根据发送信号调制光产生的光信号被发送到传输线。 在光接收机中，通过使用包含在接收信号中的检测位来检测和补偿接收数据的逻辑反转或位交换，执行经补偿的接收信号的解码处理。 结果，当在一个符号时间内能够发送多位信息的光信号被传送时，通过可靠地补偿由调制格式或多路复用系统引起的接收数据中的错误，可以实现优异的传输特性 光信号。
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公开(公告)号：US20100254718A1
公开(公告)日：2010-10-07
申请号：US12719258
申请日：2010-03-08
IPC分类号： H04B10/06
CPC分类号： H04B10/614 , H04B10/60 , H04B10/63
摘要： In-phase signal light and quadrature-phase signal light obtained by mixing input light and local light with each other are converted into digital signals. The quality of a signal to be received is monitored with reference to information obtained through digital signal processing, and the power ratio between the input signal light and the local light that are to be mixed with each other are controlled on the basis of the result of the monitoring.
摘要翻译： 通过将输入光和局部光彼此混合而获得的同相信号光和正交相位信号光被转换为数字信号。 参照通过数字信号处理获得的信息来监视要接收的信号的质量，并且基于将要混合的输入信号光和本地光之间的功率比来控制 监控。
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19.发明申请OPTICAL TRANSMISSION/RECEPTION SYSTEM, OPTICAL TRANSMITTER, OPTICAL RECEIVER, AND OPTICAL TRANSMISSION/RECEPTION METHOD 有权光传输/接收系统，光发射机，光接收机和光传输/接收方法公开(公告)号：US20100111531A1
公开(公告)日：2010-05-06
申请号：US12581413
申请日：2009-10-19
CPC分类号： H04B10/541 , H04B10/5055 , H04B10/532 , H04B10/60 , H04B2210/254
摘要： An optical transmission/reception system includes a modulator for modulating light based on data to output signal light; a transmission-side signal processor performing transmission-side digital signal processing which imparts a polarization change to the signal light by the optical modulation with respect to an input signal; an optical transmitter in which the modulator performs the optical modulation based on the input signal subjected to the transmission-side digital signal processing in the transmission-side signal processor; and an optical receiver including a converter converting the signal light inputted from the optical transmitter via a transmission path to a digital electric signal for each polarization component, and a reception-side signal processor performing reception-side digital signal processing which imparts a polarization change having a property substantially inverse to a property of the polarization change in the transmission-side signal processor with respect to the digital electric signal from the converter.
摘要翻译： 光发送/接收系统包括：调制器，用于根据数据调制光以输出信号光; 执行发送侧数字信号处理的发送侧信号处理器，其相对于输入信号通过光调制而赋予信号光的偏振变化; 光发送器，其中调制器基于在发送侧信号处理器中进行发送侧数字信号处理的输入信号执行光调制; 以及光接收器，其包括将从所述光发送器输入的信号光经由传输路径转换为每个偏振分量的数字电信号的转换器，以及执行接收侧数字信号处理的接收侧信号处理器， 与传输侧信号处理器相对于来自转换器的数字电信号的偏振变化的特性基本上相反的特性。
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20.发明申请MONITOR CIRCUIT FOR MONITORING PROPERTY OF OPTICAL FIBER TRANSMISSION LINE AND QUALITY OF OPTICAL SIGNAL 审中-公开用于监测光纤传输线性质的监控电路和光信号质量公开(公告)号：US20090214201A1
公开(公告)日：2009-08-27
申请号：US12236028
申请日：2008-09-23
IPC分类号： H04B10/08
CPC分类号： H04B10/6971 , H04B10/0795
摘要： An optical reception circuit generates optical electric field data by performing coherent reception of an optical signal transmitted via an optical fiber transmission line. An FIR filter filters the optical electric field data so that the optical signal is equalized. A quality monitor unit calculates the average value and the standard deviation value of the amplitude of the optical signal on the basis of the equalized optical electric field data, and further calculates an optical signal-to-noise ratio on the basis of the calculated values.
摘要翻译： 光接收电路通过对通过光纤传输线传输的光信号进行相干接收来产生光电场数据。 FIR滤波器对光电场数据进行滤波，使光信号相等。 质量监视器单元基于均衡的光电场数据计算光信号的幅度的平均值和标准偏差值，并且还基于计算值来计算光信噪比。
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