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1. 发明授权

US09825707B2 System and method for coherent detection with digital signal procession 有权
公开(公告)号：US09825707B2
公开(公告)日：2017-11-21
申请号：US14377685
申请日：2013-02-08
申请人： ZTE (USA) Inc. , Jianjun Yu , Jianqiang Li , Hung-chang Chien , Zhensheng Jia
发明人： Jianjun Yu , Jianqiang Li , Hung-Chang Chien , Zhensheng Jia
IPC分类号： H04B10/2507 , H04B1/50 , H04B10/548 , H04L27/26 , H04L27/20 , H04L25/03 , H04J14/02 , H04B10/50
CPC分类号： H04B10/2507 , H04B10/50 , H04B10/548 , H04J14/0298 , H04L25/03178 , H04L27/2096 , H04L27/2601 , H04L27/2627 , H04L27/2697 , H04L2025/03414
摘要： Aspects of the present invention include apparatus and methods for transmitting and receiving signals in communication systems. A multicarrier generator generates a multicarrier signal. An optical demultiplexer separates the multicarrier signal into separate multicarrier signals. At least one QPSK modulator modulates signals from the separate multicarrier signals. An optical multiplexer combines the QPSK modulated signals into a multiplexed signal. The multiplexed signal is then transmitted.

2. 发明授权

US10033467B2 Method and apparatus for generation of coherent and frequency-lock optical subcarriers 有权
公开(公告)号：US10033467B2
公开(公告)日：2018-07-24
申请号：US14113012
申请日：2012-04-25
申请人： Hung-Chang Chien , Jianjun Yu
发明人： Hung-Chang Chien , Jianjun Yu
IPC分类号： H04B10/04 , H04B10/548
摘要： A method and apparatus for generating sub-carriers is disclosed. Coherent optical sub-carriers with sub-carrier spacing are generated for carrying an orthogonal frequency division multiplexed (OFDM) signal. Multiple peaks are generated by cascading multiple phase modulators driven by different radio frequency sources.

3. 发明申请

US20140233964A1 METHOD FOR GENERATING AN OPTIMIZED RETURN-TO-ZERO PULSE SHAPE AGAINST AGGRESSIVE OPTICAL FILTERING AND AN OPTICAL TRANSMITTER IMPLEMENTING THE METHOD 有权
标题翻译：用于生成优化的返回到零脉冲形状以进行渐变光学滤波的方法和实现该方法的光学发射器
公开(公告)号：US20140233964A1
公开(公告)日：2014-08-21
申请号：US14343725
申请日：2012-09-13
申请人： Hung-Chang Chien , Jianjun Yu , Ze Dong
发明人： Hung-Chang Chien , Jianjun Yu , Ze Dong
IPC分类号： H04B10/516 , H04B10/524
CPC分类号： H04B10/5162 , H04B10/508 , H04B10/524 , H04J14/002 , H04J14/06
摘要： An optical transmitter comprises: first and second sets of optical in-phase and quadrature modulators; an integrable tunable laser assembly; a first polarization beam splitter that is configured to divide the continuous-waveform optical signal into a x-polarized tributary and a y-polarized tributary, each of the x-polarized tributary and the y-polarized tributary is modulated by one of the first and second sets of optical in-phase and quadrature modulators in accordance with the two respective input signals; a second polarization beam splitter that is configured to combine the modulated x-polarized tributary and the modulated y-polarized tributary into one optical signal; and an optical modulator that is configured to modulate the combined optical signal using a driving voltage, wherein the driving voltage has a bias point that is reduced by a predefined offset from a predefined reference voltage level.
摘要翻译：光发射机包括：第一和第二组光同步和正交调制器; 可集成可调激光器组件; 第一偏振分束器，被配置为将连续波形光信号划分成x偏振支路和y偏振支路，x偏振支路和y偏振支路中的每一个由第一和/ 根据两个相应的输入信号的第二组光同步和正交调制器; 第二偏振分束器，被配置为将调制的x偏振支路和调制的y偏振支路组合成一个光信号; 以及光学调制器，其被配置为使用驱动电压来调制所述组合的光信号，其中所述驱动电压具有被减小预定义的偏离预定参考电压电平的偏置点。

4. 发明申请

US20130028603A1 METHOD AND APPARATUS FOR PERFORMING TEMPORAL POLARIZATION INTERLEAVING IN AN OPTICAL TRANSMITTING SYSTEM 有权
标题翻译：在光传输系统中执行时域极化交互的方法和装置
公开(公告)号：US20130028603A1
公开(公告)日：2013-01-31
申请号：US13556928
申请日：2012-07-24
申请人： Hung-Chang Chien , Jianjun Yu , Ze Dong
发明人： Hung-Chang Chien , Jianjun Yu , Ze Dong
IPC分类号： H04J14/06
CPC分类号： H04B10/5051 , H04B10/5053 , H04B10/5162 , H04B10/5561
摘要： An optical signal transmitting system, comprising: an optical transmitter including one or more input terminals and an output terminal; and a temporal polarization interleaver including an input terminal and an output terminal, wherein the output terminal of the optical transmitter is communicatively coupled to the input terminal of the temporal polarization interleaver, wherein: the optical transmitter is configured to receive one or more input signals through its one or more input terminals, generate an output signal using the one or more input signals, the output signal including a x-polarized tributary and a y-polarized tributary that is pulse-to-pulse aligned with the x-polarized tributary, and transmit the output signal to the temporal polarization interleaver; and the temporal polarization interleaver is configured to receive the output signal from the optical transmitter and cause a predefined phase delay to one of the x-polarized tributary and the y-polarized tributary.
摘要翻译：一种光信号传输系统，包括：光发射机，包括一个或多个输入端和一输出端; 以及包括输入端和输出端的时间偏振交织器，其中所述光发送器的输出端通信地耦合到所述时间偏振交织器的输入端，其中：所述光发送器被配置为通过以下方式接收一个或多个输入信号：其一个或多个输入端子使用一个或多个输入信号产生输出信号，该输出信号包括与x偏振支路脉冲对脉冲对准的x偏振支路和y偏振支路，以及将输出信号发送到时间偏振交织器; 并且时间偏振交织器被配置为从光发射器接收输出信号，并且对x偏振支流和y偏振支路之一引起预定的相位延迟。

5. 发明申请

US20120321248A1 MULTI-STAGE OPTICAL INTERLEAVING 有权
标题翻译：多级光学交互
公开(公告)号：US20120321248A1
公开(公告)日：2012-12-20
申请号：US13492775
申请日：2012-06-08
申请人： Hung-Chang Chien , Jianjun Yu , Ze Dong
发明人： Hung-Chang Chien , Jianjun Yu , Ze Dong
IPC分类号： G02B6/26
CPC分类号： G02B6/26 , H04B10/516 , H04J14/00 , H04J14/02
摘要： Methods and devices are provided to facilitate production of optical signals that exhibit reduced crosstalk noise and intersymbol interference. In some configurations, a multi-stage optical interleaver, including a first and a second optical interleaver, is used to process a first and a second set of input optical channels. The composite optical output of the multi-stage interleaver includes the first set of optical channels and the second set of optical channels, where each of the first and second set of input optical channels is processed once by the first optical interleaver and once by the second optical interleaver. As such, the first and second sets of input optical channels are each filtered twice using only two optical interleavers.
摘要翻译：提供了方法和装置，以便于生产表现出减少的串扰噪声和符号间干扰的光信号。在一些配置中，使用包括第一和第二光交织器的多级光交织器来处理第一和第二组输入光信道。多级交织器的复合光输出包括第一组光通道和第二组光通道，其中第一和第二组输入光通道中的每一个由第一光交错器处理一次，一次由第二组光学交织器。这样，第一组和第二组输入光通道每个仅使用两个光交错器进行两次滤波。

6. 发明授权

US09106343B2 Method and apparatus for performing temporal polarization interleaving in an optical transmitting system 有权
标题翻译：用于在光发射系统中执行时间偏振交织的方法和装置
公开(公告)号：US09106343B2
公开(公告)日：2015-08-11
申请号：US13556928
申请日：2012-07-24
申请人： Hung-Chang Chien , Jianjun Yu , Ze Dong
发明人： Hung-Chang Chien , Jianjun Yu , Ze Dong
IPC分类号： H04B10/04 , H04B10/12 , H04B10/50 , H04B10/516 , H04B10/556
CPC分类号： H04B10/5051 , H04B10/5053 , H04B10/5162 , H04B10/5561
摘要： An optical signal transmitting system, comprising: an optical transmitter including one or more input terminals and an output terminal; and a temporal polarization interleaver including an input terminal and an output terminal, wherein the output terminal of the optical transmitter is communicatively coupled to the input terminal of the temporal polarization interleaver, wherein: the optical transmitter is configured to receive one or more input signals through its one or more input terminals, generate an output signal using the one or more input signals, the output signal including a x-polarized tributary and a y-polarized tributary that is pulse-to-pulse aligned with the x-polarized tributary, and transmit the output signal to the temporal polarization interleaver; and the temporal polarization interleaver is configured to receive the output signal from the optical transmitter and cause a predefined phase delay to one of the x-polarized tributary and the y-polarized tributary.
摘要翻译：一种光信号传输系统，包括：光发射机，包括一个或多个输入端和输出端; 以及包括输入端和输出端的时间偏振交织器，其中所述光发送器的输出端通信地耦合到所述时间偏振交织器的输入端，其中：所述光发送器被配置为通过以下方式接收一个或多个输入信号：其一个或多个输入端子使用一个或多个输入信号产生输出信号，该输出信号包括与x偏振支路脉冲对脉冲对准的x偏振支路和y偏振支路，以及将输出信号发送到时间偏振交织器; 并且时间偏振交织器被配置为从光发射器接收输出信号，并且对x偏振支流和y偏振支路之一引起预定的相位延迟。

7. 发明授权

US08983297B2 Multi-stage optical interleaving 有权
标题翻译：多级光交错
公开(公告)号：US08983297B2
公开(公告)日：2015-03-17
申请号：US13492775
申请日：2012-06-08
申请人： Hung-Chang Chien , Jianjun Yu , Ze Dong
发明人： Hung-Chang Chien , Jianjun Yu , Ze Dong
IPC分类号： H04J14/02 , G02B6/26 , H04J14/00 , H04B10/516
CPC分类号： G02B6/26 , H04B10/516 , H04J14/00 , H04J14/02
摘要： Methods and devices are provided to facilitate production of optical signals that exhibit reduced crosstalk noise and intersymbol interference. In some configurations, a multi-stage optical interleaver, including a first and a second optical interleaver, is used to process a first and a second set of input optical channels. The composite optical output of the multi-stage interleaver includes the first set of optical channels and the second set of optical channels, where each of the first and second set of input optical channels is processed once by the first optical interleaver and once by the second optical interleaver. As such, the first and second sets of input optical channels are each filtered twice using only two optical interleavers.
摘要翻译：提供了方法和装置，以便于生产表现出减少的串扰噪声和符号间干扰的光信号。在一些配置中，使用包括第一和第二光交织器的多级光交织器来处理第一和第二组输入光信道。多级交织器的复合光输出包括第一组光通道和第二组光通道，其中第一和第二组输入光通道中的每一个由第一光交错器处理一次，一次由第二组光学交织器。这样，第一组和第二组输入光通道每个仅使用两个光交错器进行两次滤波。

8. 发明授权

US09294199B2 Method for generating an optimized return-to-zero pulse shape against aggressive optical filtering and an optical transmitter implementing the method 有权
标题翻译：用于产生针对侵略性光学滤波的优化的归零脉冲形状的方法和实现该方法的光发射器
公开(公告)号：US09294199B2
公开(公告)日：2016-03-22
申请号：US14343725
申请日：2012-09-13
申请人： Hung-Chang Chien , Jianjun Yu , Ze Dong
发明人： Hung-Chang Chien , Jianjun Yu , Ze Dong
IPC分类号： H04B10/04 , H04B10/516 , H04J14/06 , H04B10/508 , H04J14/00 , H04B10/524
CPC分类号： H04B10/5162 , H04B10/508 , H04B10/524 , H04J14/002 , H04J14/06
摘要： An optical transmitter comprises: first and second sets of optical in-phase and quadrature modulators; an integrable tunable laser assembly; a first polarization beam splitter that is configured to divide the continuous-waveform optical signal into a x-polarized tributary and a y-polarized tributary, each of the x-polarized tributary and the y-polarized tributary is modulated by one of the first and second sets of optical in-phase and quadrature modulators in accordance with the two respective input signals; a second polarization beam splitter that is configured to combine the modulated x-polarized tributary and the modulated y-polarized tributary into one optical signal; and an optical modulator that is configured to modulate the combined optical signal using a driving voltage, wherein the driving voltage has a bias point that is reduced by a predefined offset from a predefined reference voltage level.
摘要翻译：光发射机包括：第一和第二组光同步和正交调制器; 可集成可调激光器组件; 第一偏振分束器，被配置为将连续波形光信号划分成x偏振支路和y偏振支路，x偏振支路和y偏振支路中的每一个由第一和/ 根据两个相应的输入信号的第二组光同步和正交调制器; 第二偏振分束器，被配置为将调制的x偏振支路和调制的y偏振支路组合成一个光信号; 以及光学调制器，其被配置为使用驱动电压来调制所述组合的光信号，其中所述驱动电压具有被减小预定义的偏离预定参考电压电平的偏置点。

9. 发明申请

US20140105615A1 METHOD AND APPARATUS FOR GENERATION OF COHERENT AND FREQUENCY-LOCK OPTICAL SUBCARRIERS 审中-公开
标题翻译：用于生成相邻和频率光学子载波的方法和装置
公开(公告)号：US20140105615A1
公开(公告)日：2014-04-17
申请号：US14113012
申请日：2012-04-25
申请人： Hung-Chang Chien , Jianjun Yu
发明人： Hung-Chang Chien , Jianjun Yu
IPC分类号： H04B10/548
CPC分类号： H04B10/548
摘要： A method and apparatus for generating sub-carriers is disclosed. Coherent optical sub-carriers with sub-carrier spacing are generated for carrying an orthogonal frequency division multiplexed (OFDM) signal. Multiple peaks are generated by cascading multiple phase modulators driven by different radio frequency sources.
摘要翻译：公开了一种用于生成副载波的方法和装置。产生具有副载波间隔的相干光子载波，用于承载正交频分复用（OFDM）信号。通过级联由不同射频源驱动的多个相位调制器产生多个峰值。

10. 发明授权

US09369228B2 Method and apparatus for heterodyne coherent detection 有权
标题翻译：用于外差相干检测的方法和装置
公开(公告)号：US09369228B2
公开(公告)日：2016-06-14
申请号：US13966845
申请日：2013-08-14
申请人： ZTE (USA) INC.
发明人： Jianjun Yu , Ze Dong , Hung-Chang Chien
IPC分类号： H04B10/06 , H04J14/08 , H04J14/02 , H04J14/06 , H04B10/61 , H04B10/64
CPC分类号： H04J14/08 , H04B10/614 , H04B10/64 , H04J14/02 , H04J14/06
摘要： A simplified coherent receiver based on heterodyne detection with only two balanced photo detectors (PD) and two analog-to-digital converters (ADC) is disclosed. The polarization diversity hybrid can be simplified relative to the conventional one. The detected intermediate frequency signals are first down converted to baseband with I/Q separation.
摘要翻译：公开了一种基于仅使用两个平衡光电检测器（PD）和两个模拟 - 数字转换器（ADC）的外差检测的简化相干接收机。相对于传统的偏振分集混合可以简化。检测到的中频信号首先通过I / Q分离下变频到基带。

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