公开(公告)号：US08724998B2

公开(公告)日：2014-05-13

申请号：US13478892

申请日：2012-05-23

申请人： Lei Xu ,  Dayou Qian ,  Ting Wang

发明人： Lei Xu ,  Dayou Qian ,  Ting Wang

IPC分类号： H04B10/04 ,  H04J14/00

CPC分类号： H04L5/0012 ,  H04L5/0008 ,  H04L27/2642 ,  H04L27/2647

摘要： Methods and systems for secure communication include assigning data streams to respective orthogonal sub-carriers according to random number information at a transmitter. The data streams are modulated onto the respective orthogonal sub-carriers before the orthogonal sub-carriers are transmitted. The random number information is transmitted on a second medium, separate from the transmission medium. The orthogonal sub-carriers are received from the transmission medium at a receiver, while the random number information is received from the second medium at the receiver. The orthogonal sub-carriers are associated with data streams using the random number information and demodulated to produce data for the associated data stream.

摘要翻译： 用于安全通信的方法和系统包括根据发射机处的随机数信息将数据流分配给各个正交子载波。 在发送正交子载波之前，将数据流调制到各个正交子载波上。 在与传输介质分离的第二介质上发送随机数信息。 在接收机处从传输介质接收正交子载波，而在接收机处从第二媒体接收随机数信息。 正交子载波与使用随机数信息的数据流相关联并被解调以产生用于相关联的数据流的数据。

公开(公告)号：US08358936B2

公开(公告)日：2013-01-22

申请号：US12562251

申请日：2009-09-18

申请人： Jianjun Yu ,  Lei Xu ,  Dayou Qian ,  Ting Wang

发明人： Jianjun Yu ,  Lei Xu ,  Dayou Qian ,  Ting Wang

IPC分类号： H04B10/04 ,  H04B10/12

CPC分类号： H04B10/50

摘要： An optical apparatus includes a quadrature phase shift keying modulator for generating a non-return-to-zero quadrature phase shift keyed NRZ-QPSK signal from a received lightwave, the modulator being driven by a radio frequency RF signal, an intensity modulator for carving the NRZ-QPSK signal to return-to-zero RZ pulses with a different duty cycle than that of the NRZ-QPSK, the intensity modulator being driven by a radio frequency RF clock signal to change the NRZ-QPSK to an RZ-QPSK signal, and an optical filter with a narrow band for filtering the signal from the intensity modulator to increase optical power that is useable by an optical digital coherent detection system.

摘要翻译： 光学装置包括：正交相移键控调制器，用于从接收到的光波产生不归零正交相移键控的NRZ-QPSK信号，调制器由射频RF信号驱动;强度调制器，用于雕刻 NRZ-QPSK信号以与NRZ-QPSK的占空比不同的占空比的归零RZ脉冲，强度调制器由射频RF时钟信号驱动，以将NRZ-QPSK改变为RZ-QPSK信号， 以及具有窄带的滤光器，用于对来自强度调制器的信号进行滤波，以增加可由光学数字相干检测系统使用的光功率。

公开(公告)号：US20120321318A1

公开(公告)日：2012-12-20

申请号：US13478892

申请日：2012-05-23

申请人： Lei Xu ,  Dayou Qian ,  Ting Wang

发明人： Lei Xu ,  Dayou Qian ,  Ting Wang

IPC分类号： H04J14/00

CPC分类号： H04L5/0012 ,  H04L5/0008 ,  H04L27/2642 ,  H04L27/2647

摘要： Methods and systems for secure communication include assigning data streams to respective orthogonal sub-carriers according to random number information at a transmitter. The data streams are modulated onto the respective orthogonal sub-carriers before the orthogonal sub-carriers are transmitted. The random number information is transmitted on a second medium, separate from the transmission medium. The orthogonal sub-carriers are received from the transmission medium at a receiver, while the random number information is received from the second medium at the receiver. The orthogonal sub-carriers are associated with data streams using the random number information and demodulated to produce data for the associated data stream.

摘要翻译： 用于安全通信的方法和系统包括根据发射机处的随机数信息将数据流分配给各个正交子载波。 在发送正交子载波之前，将数据流调制到各个正交子载波上。 在与传输介质分离的第二介质上发送随机数信息。 在接收机处从传输介质接收正交子载波，而在接收机处从第二媒体接收随机数信息。 正交子载波与使用随机数信息的数据流相关联并被解调以产生用于相关联的数据流的数据。

公开(公告)号：US08064774B2

公开(公告)日：2011-11-22

申请号：US12117347

申请日：2008-05-08

申请人： Jianjun Yu ,  Dayou Qian ,  Lei Xu ,  Ting Wang

发明人： Jianjun Yu ,  Dayou Qian ,  Lei Xu ,  Ting Wang

IPC分类号： H04B10/00

CPC分类号： H04B10/25758

摘要： A method includes generating an optical millimeter wave signal for modulation of a first data signal, and deriving from the generated optical millimeter wave signal a subsequent light source for modulation of a second data signal. More specifically the generating includes modulating a light wave to a multiple of a frequency of an oscillating signal. Alternatively, the generating includes modulating a data signal mixed with an oscillating signal to a multiple of a frequency of the oscillating signal. The deriving includes modulating a frequency component filtered from a data modulation of the generated optical millimeter wave signal.

摘要翻译： 一种方法包括产生用于调制第一数据信号的光学毫米波信号，以及从所生成的光学毫米波信号中导出用于调制第二数据信号的后续光源。 更具体地，生成包括将光波调制到振荡信号的频率的倍数。 或者，生成包括将与振荡信号混合的数据信号调制为振荡信号的频率的倍数。 导出包括调制从产生的光学毫米波信号的数据调制滤波的频率分量。

公开(公告)号：US20100086314A1

公开(公告)日：2010-04-08

申请号：US12562251

申请日：2009-09-18

申请人： Jianjun Yu ,  Lei Xu ,  Dayou Qian ,  Ting Wang

发明人： Jianjun Yu ,  Lei Xu ,  Dayou Qian ,  Ting Wang

IPC分类号： H04B10/04

CPC分类号： H04B10/50

摘要： An optical apparatus includes a quadrature phase shift keying modulator for generating a non-return-to-zero quadrature phase shift keyed NRZ-QPSK signal from a received lightwave, the modulator being driven by a radio frequency RF signal, an intensity modulator for carving the NRZ-QPSK signal to return-to-zero RZ pulses with a different duty cycle than that of the NRZ-QPSK, the intensity modulator being driven by a radio frequency RF clock signal to change the NRZ-QPSK to an RZ-QPSK signal, and an optical filter with a narrow band for filtering the signal from the intensity modulator to increase optical power that is useable by an optical digital coherent detection system.

摘要翻译： 光学装置包括：正交相移键控调制器，用于从接收到的光波产生不归零正交相移键控的NRZ-QPSK信号，调制器由射频RF信号驱动;强度调制器，用于雕刻 NRZ-QPSK信号以与NRZ-QPSK的占空比不同的占空比的归零RZ脉冲，强度调制器由射频RF时钟信号驱动，以将NRZ-QPSK改变为RZ-QPSK信号， 以及具有窄带的滤光器，用于对来自强度调制器的信号进行滤波，以增加可由光学数字相干检测系统使用的光功率。

公开(公告)号：US07973688B2

公开(公告)日：2011-07-05

申请号：US12200219

申请日：2008-08-28

申请人： Yue-Kai Huang ,  Ting Wang ,  Philip Nan Ji

发明人： Yue-Kai Huang ,  Ting Wang ,  Philip Nan Ji

IPC分类号： H03M1/00

CPC分类号： G02F7/00

摘要： An analog to digital converter (ADC) structure and method includes a photonic filter bank having at least two filters. The at least two filters are configured to create a corresponding spectral tributary from an input signal at a target rate, and the at least two filters are configured to exhibit orthogonality properties between respective tributaries. An optical/electrical (O/E) converter is coupled to each of the at least two filters in a respective spectral tributary to convert an optical input to an electrical output. An analog to digital converter (ADC) is coupled to each of the O/E converters in a respective spectral tributary to sample the electrical output at a fraction of a target rate and to convert a sampled analog electrical output into a digital signal. A synthesis filter is coupled to each of the ADCs in a respective spectral tributary to reconstruct the input signal digitally at the target rate.

摘要翻译： 模数转换器（ADC）结构和方法包括具有至少两个滤波器的光子滤波器组。 所述至少两个滤波器被配置为以目标速率从输入信号创建相应的频谱支路，并且所述至少两个滤波器被配置为在各个支路之间呈现正交性质。 光/电（O / E）转换器耦合到相应频谱支路中的至少两个滤波器中的每一个，以将光输入转换成电输出。 模数转换器（ADC）被耦合到相应频谱支路中的每个O / E转换器，以一小部分目标速率对电输出进行采样，并将采样的模拟电输出转换为数字信号。 合成滤波器耦合到相应频谱支路中的每个ADC，以目标速率数字地重构输入信号。

公开(公告)号：US08693890B2

公开(公告)日：2014-04-08

申请号：US13081693

申请日：2011-04-07

申请人： Dayou Qian ,  Ting Wang

发明人： Dayou Qian ,  Ting Wang

IPC分类号： H04B10/12 ,  H04B10/04

CPC分类号： H04B10/2543

摘要： Systems and methods are disclosed to process an optical signal with a pre-processing module to populate a non-linearity compensation look-up table based on a set of predetermined rules in a non-real-time off-line mode; and a transmitter applying said predetermined rules in real-time to multiple channel input data to generate a real-time symbol pattern, searching the look-up table with the real-time symbol pattern to determine a non-linearity compensation output, and modulating the optical signal with the compensation output.

摘要翻译： 公开了系统和方法来处理具有预处理模块的光信号，以基于非实时离线模式中的一组预定规则来填充非线性补偿查找表; 以及发射机将所述预定规则实时地应用于多个信道输入数据以产生实时符号模式，用实时符号模式搜索查找表以确定非线性补偿输出，并且调制 光信号具有补偿输出。

公开(公告)号：US20120301157A1

公开(公告)日：2012-11-29

申请号：US13267131

申请日：2011-10-06

申请人： Dayou Qian ,  Junqiang Hu ,  Ting Wang ,  Yoshiaki Aono ,  Tsutomu Tajima

发明人： Dayou Qian ,  Junqiang Hu ,  Ting Wang ,  Yoshiaki Aono ,  Tsutomu Tajima

IPC分类号： H04B10/06 ,  H04B10/04

CPC分类号： H04B10/25133

摘要： Methods and devices for compensating for chromatic dispersion are shown that include receiving an input data signal, applying a filter to the data signal, and outputting a CD compensated signal. Applying the filter includes convolving known filter coefficients with a plurality of delayed versions of the data signal using addition and at least one inverse sign operation or using lookup tables and combining outputs to produce a CD compensated signal.

摘要翻译： 示出了用于补偿色散的方法和装置，其包括接收输入数据信号，向数据信号施加滤波器，以及输出CD补偿信号。 应用滤波器包括使用加法和至少一个逆符号操作或使用查找表并组合输出以产生CD补偿信号的具有多个延迟版本的数据信号的已知滤波器系数。

公开(公告)号：US08098990B2

公开(公告)日：2012-01-17

申请号：US11832075

申请日：2007-08-01

申请人： Junqiang Hu ,  Ting Wang ,  Dayou Qian ,  Yuanqiu Luo ,  Yoshihiko Suemura ,  Makoto Shibutani

发明人： Junqiang Hu ,  Ting Wang ,  Dayou Qian ,  Yuanqiu Luo ,  Yoshihiko Suemura ,  Makoto Shibutani

IPC分类号： H04J14/00

CPC分类号： H04W88/085 ,  H04J14/021 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0282 ,  H04J14/0298 ,  H04Q11/0067 ,  H04Q2011/0086

摘要： A network system and method include a wireless base station integrated at a central office of a service provider. The wireless base station is configured to provide portable and fixed services to customers. A passive optical network is coupled to the wireless base station at the central office to provide a link to extend an antenna for wireless operations of the wireless base station to a remote site such that a wireless signal from the wireless base station is transmitted in parallel with a passive fiber network signal through the link.

摘要翻译： 网络系统和方法包括集成在服务提供商的中心局的无线基站。 无线基站被配置为向客户提供便携和固定的服务。 无源光网络耦合到中心局的无线基站，以提供链路，以将无线基站的无线操作的天线扩展到远程站点，使得来自无线基站的无线信号与 无源光纤网络信号通过链路。

公开(公告)号：US20100329696A1

公开(公告)日：2010-12-30

申请号：US12562260

申请日：2009-09-18

申请人： Jianjun Yu ,  Ting Wang ,  Dayou Qian

发明人： Jianjun Yu ,  Ting Wang ,  Dayou Qian

IPC分类号： H04B10/04

CPC分类号： H04B10/5053 ,  H04B10/541

摘要： An optical transmitter including a dividing optical coupler for dividing a lightwave onto optical paths; a first optical modulator in a first of the optical paths and driven by an I component of a first signal and a I component of a second signal for modulating the lightwave, a DC bias of the first optical modulator being at a quadrature point; a second optical modulator in a second of the optical paths and driven by a Q component of the first signal and a Q component of the second signal for modulating the lightwave, a DC bias of the second optical modulator being at the quadrature point; a phase shifter for generating a 90 degree phase shift in the Q components of the first and second signals that are modulated by the second optical coupler; and a combining optical coupler for combining the modulated lightwave from the first optical coupler and the phase shifted Q components of the first and second signals for generating a quadrature amplitude modulated signal.

摘要翻译： 一种光发射机，包括用于将光波分解成光路的分光光耦合器; 在第一光路中的由第一信号的I分量和用于调制光波的第二信号的I分量驱动的第一光调制器，第一光调制器的DC偏置处于正交点; 在第二光路中的第二光调制器，由第一信号的Q分量和第二信号的Q分量驱动，用于调制光波，第二光调制器的DC偏置处于正交点; 移相器，用于产生由第二光耦合器调制的第一和第二信号的Q分量中的90度相移; 以及组合光耦合器，用于组合来自第一光耦合器的调制光波和用于产生正交幅度调制信号的第一和第二信号的相移Q分量。