公开(公告)号：US08693892B2

公开(公告)日：2014-04-08

申请号：US12897331

申请日：2010-10-04

申请人： Liang Dou ,  Zhenning Tao

发明人： Liang Dou ,  Zhenning Tao

IPC分类号： H04B10/50

摘要： This invention relates to external modulator monitoring device and method for monitoring an external modulator. The external modulator monitoring device includes a mixing unit for mixing optical signals modulated by the external modulator and optical signals not modulated by the external modulator, so as to obtain multiple branches of mixed optical signals; an electrical differential unit for converting the multiple branches of mixed optical signals into corresponding multiple branches of electrical signals, and performing a differential processing on voltages of the multiple branches of electrical signals to obtain differential signals; and a power detection unit for detecting power of the differential signals.

公开(公告)号：US20110166846A1

公开(公告)日：2011-07-07

申请号：US12896428

申请日：2010-10-01

申请人： Liang Dou ,  Zhenning Tao ,  Shoichiro Oda

发明人： Liang Dou ,  Zhenning Tao ,  Shoichiro Oda

IPC分类号： G06G7/62

CPC分类号： H04Q11/0062 ,  H04Q2011/0086 ,  H04Q2213/1301

摘要： The present invention relates to a simulation device and simulation method for a cascade communication system. The cascade communication system comprises a plurality of nodes numbered as 1 to N successively from a transmitter to a receiver, the method comprises: acquiring simulation parameters required for simulating the cascade communication system; calculating reverse transfer functions of the respective nodes; determining a current node in a sequence from the Nth node to the first node; adding noise that should be added at the current node to a simulation signal of a previous node from the current node; simulating the current node to generate a simulation signal of the current node, by using the simulation signal of the previous node added with the noise that should be added at the current node, based on the reverse transfer function of the current node; judging whether simulations of all the nodes are completed; if the simulations of all the nodes are not completed, repeating the adding and the simulating for the simulation signal of the current node; if the simulations of all the nodes are completed, determining a cost of the cascade communication system based on the simulation signal of the current node.

摘要翻译： 本发明涉及级联通信系统的仿真装置和仿真方法。 级联通信系统包括从发射机到接收机连续编号为1到N的多个节点，该方法包括：获取模拟级联通信系统所需的模拟参数; 计算各个节点的反向传递函数; 确定从第N个节点到第一节点的序列中的当前节点; 将当前节点应添加的噪声添加到来自当前节点的先前节点的模拟信号; 基于当前节点的反向传递函数，通过使用添加了当前节点应添加的噪声的先前节点的模拟信号，模拟当前节点生成当前节点的模拟信号; 判断所有节点的仿真是否完成; 如果所有节点的仿真都没有完成，则对当前节点的仿真信号重复加法和仿真; 如果所有节点的模拟完成，则根据当前节点的模拟信号确定级联通信系统的成本。

公开(公告)号：US08761613B2

公开(公告)日：2014-06-24

申请号：US12897331

申请日：2010-10-04

申请人： Liang Dou ,  Zhenning Tao

发明人： Liang Dou ,  Zhenning Tao

IPC分类号： H04B10/50

CPC分类号： H04B10/50575 ,  H04B10/50595

摘要： This invention relates to external modulator monitoring device and method for monitoring an external modulator. The external modulator monitoring device includes a mixing unit for mixing optical signals modulated by the external modulator and optical signals not modulated by the external modulator, so as to obtain multiple branches of mixed optical signals; an electrical differential unit for converting the multiple branches of mixed optical signals into corresponding multiple branches of electrical signals, and performing a differential processing on voltages of the multiple branches of electrical signals to obtain differential signals; and a power detection unit for detecting power of the differential signals.

摘要翻译： 本发明涉及用于监视外部调制器的外部调制器监视装置和方法。 外部调制器监视装置包括用于混合由外部调制器调制的光信号和未被外部调制器调制的光信号的混合单元，以获得混合光信号的多个分支; 用于将混合光信号的多个分支转换成相应的多个电信号的电差分单元，并且对电信号的多个分支的电压进行差分处理以获得差分信号; 以及功率检测单元，用于检测差分信号的功率。

公开(公告)号：US08774313B2

公开(公告)日：2014-07-08

申请号：US13212543

申请日：2011-08-18

申请人： Liang Dou ,  Zhenning Tao

发明人： Liang Dou ,  Zhenning Tao

IPC分类号： H04L25/03

CPC分类号： H04B10/2543 ,  H04B10/2939

摘要： The present invention provides nonlinear compensating apparatus and transmitter. The nonlinear compensating apparatus comprises: an information acquiring unit to acquire a symbol information sequence of the pulse information input by a transmitting side; a perturbation quantity calculating unit to calculate the weighted sum of the interaction of the pulses of several items at several different instants relative to the current instant, to obtain the perturbation quantity produced by the current instant nonlinear effect on a transmission link of a certain length; and an information compensating unit to compensate for the symbol information sequence of the pulses at the current instant acquired by the information acquiring unit by using the perturbation quantity obtained by the perturbation quantity calculating unit, so as to obtain the symbol information sequence compensated at the current instant to cause the transmitting side to transmit signals according to the compensated symbol information sequence. The apparatus corrects the symbol information sequence of the pulse signals input by a transmitting side, with the complexity of calculation being low, and the apparatus is applicable to single-polarization and dual-polarization multiplexing systems, and at the same time, compatible with any modulation format.

摘要翻译： 本发明提供非线性补偿装置和发射机。 该非线性补偿装置包括：信息获取单元，用于获取由发送侧输入的脉冲信息的符号信息序列; 扰动量计算单元，用于计算在若干不同时刻相对于当前时刻的若干项目的脉冲的相互作用的加权和，以获得由当前瞬时非线性效应产生的对某一长度的传输链路产生的扰动量; 以及信息补偿单元，用于通过使用由扰动量计算单元获得的扰动量来补偿由信息获取单元获取的当前时刻的脉冲的符号信息序列，以便获得当前所补偿的符号信息序列 立即使发送侧根据经补偿的符号信息序列发送信号。 该装置校正由发送侧输入的脉冲信号的符号信息序列，其计算的复杂度低，并且该装置可应用于单极化和双偏振复用系统，并且同时兼容任何 调制格式。

公开(公告)号：US08725003B2

公开(公告)日：2014-05-13

申请号：US12897331

申请日：2010-10-04

申请人： Liang Dou ,  Zhenning Tao

发明人： Liang Dou ,  Zhenning Tao

IPC分类号： H04B10/50

摘要： This invention relates to external modulator monitoring device and method for monitoring an external modulator. The external modulator monitoring device includes a mixing unit for mixing optical signals modulated by the external modulator and optical signals not modulated by the external modulator, so as to obtain multiple branches of mixed optical signals; an electrical differential unit for converting the multiple branches of mixed optical signals into corresponding multiple branches of electrical signals, and performing a differential processing on voltages of the multiple branches of electrical signals to obtain differential signals; and a power detection unit for detecting power of the differential signals.

公开(公告)号：US08566073B2

公开(公告)日：2013-10-22

申请号：US12896428

申请日：2010-10-01

申请人： Liang Dou ,  Zhenning Tao ,  Shoichiro Oda

发明人： Liang Dou ,  Zhenning Tao ,  Shoichiro Oda

IPC分类号： G06F17/50 ,  G06G7/62

CPC分类号： H04Q11/0062 ,  H04Q2011/0086 ,  H04Q2213/1301

摘要： A simulation method for a cascade communication system comprising a nodes sequence numbered as 1 to N from a transmitter to a receiver, comprises: acquiring simulation parameters; calculating reverse transfer functions of the nodes; determining a current node in the sequence; adding noise that should be added at the current node to a simulation signal of a previous node; simulating the current node to generate a simulation signal of the current node, by using the simulation signal of the previous node added with the noise that should be added at the current node, based on the reverse transfer function of the current node; judging whether simulations of all the nodes are completed; if yes, repeating the adding and the simulating; if not, determining a cost of the based on the simulation signal of the current node.

摘要翻译： 一种级联通信系统的仿真方法，包括从发射机到接收机的编号为1到N的节点序列，包括：获取模拟参数; 计算节点的反向传递函数; 确定序列中的当前节点; 将应该在当前节点添加的噪声添加到先前节点的模拟信号; 基于当前节点的反向传递函数，通过使用添加了当前节点应添加的噪声的先前节点的模拟信号，模拟当前节点生成当前节点的模拟信号; 判断所有节点的仿真是否完成; 如果是，重复添加和模拟; 如果不是，则基于当前节点的模拟信号确定成本。

公开(公告)号：US08521498B2

公开(公告)日：2013-08-27

申请号：US12896428

申请日：2010-10-01

申请人： Liang Dou ,  Zhenning Tao ,  Shoichiro Oda

发明人： Liang Dou ,  Zhenning Tao ,  Shoichiro Oda

IPC分类号： G06F17/50 ,  G06G7/62

摘要： A simulation method for a cascade communication system comprising a nodes sequence numbered as 1 to N from a transmitter to a receiver, comprises: acquiring simulation parameters; calculating reverse transfer functions of the nodes; determining a current node in the sequence; adding noise that should be added at the current node to a simulation signal of a previous node; simulating the current node to generate a simulation signal of the current node, by using the simulation signal of the previous node added with the noise that should be added at the current node, based on the reverse transfer function of the current node; judging whether simulations of all the nodes are completed; if yes, repeating the adding and the simulating; if not, determining a cost of the based on the simulation signal of the current node.