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21. 发明授权

US08213795B2 Systems and methods of polarization time coding for optical communications 有权
标题翻译：用于光通信的偏振时间编码系统和方法
公开(公告)号：US08213795B2
公开(公告)日：2012-07-03
申请号：US12118642
申请日：2008-05-09
申请人： Yan Han , Guifang Li
发明人： Yan Han , Guifang Li
IPC分类号： H04B10/00
CPC分类号： H04B10/50 , H04B10/2507 , H04B10/5161 , H04B10/532
摘要： Systems and methods of polarization-time coding are disclosed. One method includes encoding information in orthogonal polarizations of light and correlated information in multiple time slots, and transmitting the information using the orthogonal polarizations in the time slots. Another method includes receiving a first input pair which specifies a first polarization state and a second input pair containing which specifies a second polarization state; transforming each input pair according to a matrix specifying a conjugate operation to produce four output pairs. The method further includes transmitting at a first time the first output pair using the first polarization state and the third output pair using the second polarization state. The method further includes transmitting at a second time the second output pair using the first polarization state and the fourth output pair using the second polarization state.
摘要翻译：公开了偏振时间编码的系统和方法。一种方法包括在多个时隙中的光和相关信息的正交偏振中编码信息，以及在时隙中使用正交偏振来发送信息。另一方法包括接收指定第一偏振状态的第一输入对和包含指定第二偏振状态的第二输入对; 根据指定共轭运算的矩阵来变换每个输入对以产生四个输出对。该方法还包括使用第二偏振态使用第一偏振状态和第三输出对在第一时间发送第一输出对。该方法还包括使用第二偏振态使用第一偏振状态和第四输出对在第二时间发送第二输出对。

22. 发明授权

US07983570B2 Direct detection differential polarization-phase-shift keying for high spectral efficiency optical communication 有权
标题翻译：用于高光谱效率光通信的直接检测差分极化相移键控
公开(公告)号：US07983570B2
公开(公告)日：2011-07-19
申请号：US12618370
申请日：2009-11-13
申请人： Yan Han , Guifang Li
发明人： Yan Han , Guifang Li
IPC分类号： H04B10/04
CPC分类号： H04B10/5561 , H04B10/505 , H04B10/5161 , H04B10/532 , H04B10/677
摘要： Efficient apparatus, methods, systems and devices to generate, transmit and detect optical differential polarization-phase-shift keying signals are disclosed for high spectral efficiency optical communication systems. It includes an electrical encoder and an optical encoder for generation of differentially encoded polarization-phase modulated optical signals and optical demodulators and balanced detectors for detection of the optical signals. The optical signals are transmitted through optical fiber links or free space. The electrical encoder maps independent data channels into differentially-encoded data sequences. In the optical encoder, the encoded data sequences from the electrical encoder drive optical modulators to generate differentially-encoded polarization-phase modulated optical signals at a symbol rate equal to the bit rate of each input data channel. After transmission through a transmission medium, the optical signals are demodulated optically and the original data are recovered by multilevel detection, without recovering the polarization state of received signals.
摘要翻译：公开了用于高光谱效率光通信系统的用于生成，发射和检测光学差分偏振相移键控信号的有效装置，方法，系统和装置。它包括电编码器和用于产生差分编码的偏振相位调制光信号的光编码器和用于检测光信号的光解调器和平衡检波器。光信号通过光纤链路或自由空间传输。电编码器将独立数据信道映射到差分编码数据序列中。在光学编码器中，来自电编码器的编码数据序列驱动光调制器，以等于每个输入数据信道的位速率的符号速率产生差分编码的偏振相位调制光信号。在通过传输介质传输之后，光信号被光学解调，原始数据通过多级检测恢复，而不恢复接收信号的偏振状态。

23. 发明申请

US20100142970A1 Direct Detection Differential Polarization-Phase-Shift Keying for High Spectral Efficiency Optical Communication 有权
标题翻译：直接检测差分极化相移键控高光谱效率光通信
公开(公告)号：US20100142970A1
公开(公告)日：2010-06-10
申请号：US12618370
申请日：2009-11-13
申请人： Yan Han , Guifang Li
发明人： Yan Han , Guifang Li
IPC分类号： H04B10/00
CPC分类号： H04B10/5561 , H04B10/505 , H04B10/5161 , H04B10/532 , H04B10/677
摘要： Efficient apparatus, methods, systems and devices to generate, transmit and detect optical differential polarization-phase-shift keying signals are disclosed for high spectral efficiency optical communication systems. It includes an electrical encoder and an optical encoder for generation of differentially encoded polarization-phase modulated optical signals and optical demodulators and balanced detectors for detection of the optical signals. The optical signals are transmitted through optical fiber links or free space. The electrical encoder maps independent data channels into differentially-encoded data sequences. In the optical encoder, the encoded data sequences from the electrical encoder drive optical modulators to generate differentially-encoded polarization-phase modulated optical signals at a symbol rate equal to the bit rate of each input data channel. After transmission through a transmission medium, the optical signals are demodulated optically and the original data are recovered by multilevel detection, without recovering the polarization state of received signals.
摘要翻译：公开了用于高光谱效率光通信系统的用于生成，发射和检测光学差分偏振相移键控信号的有效装置，方法，系统和装置。它包括电编码器和用于产生差分编码的偏振相位调制光信号的光编码器和用于检测光信号的光解调器和平衡检波器。光信号通过光纤链路或自由空间传输。电编码器将独立数据信道映射到差分编码数据序列中。在光学编码器中，来自电编码器的编码数据序列驱动光调制器，以等于每个输入数据信道的位速率的符号速率产生差分编码的偏振相位调制光信号。在通过传输介质传输之后，光信号被光学解调，并且原始数据通过多级检测恢复，而不恢复接收信号的偏振状态。

24. 发明授权

US07433604B1 Direct-detection optical differential 8-level phase shift keying (OD8PSK) for spectrally efficient transmission 有权
标题翻译：直接检测光差分8级相移键控（OD8PSK），用于频谱高效传输
公开(公告)号：US07433604B1
公开(公告)日：2008-10-07
申请号：US11168154
申请日：2005-06-28
申请人： Cheolhwan Kim , Yan Han , Guifang Li
发明人： Cheolhwan Kim , Yan Han , Guifang Li
IPC分类号： H04B10/04
CPC分类号： H04B10/5051 , H04B10/5053 , H04B10/5055 , H04B10/5561 , H04B10/677
摘要： Efficient systems, devices, apparatus and methods to generate, transmit and detect differentially encoded 8-level phase-modulated optical signals for spectrally efficient optical communication systems is invented. It includes an electrical encoder and an optical encoder for generation of differentially encoded 8-level phase-modulated optical signals and optical demodulators and balanced detectors for detection of the optical signals. The optical signals are transmitted through optical fiber links or air. The electrical encoder maps three independent data channels into three differentially-encoded data sequences. In the optical encoder, the encoded data sequences from the electrical encoder drive optical modulators to generate differentially-encoded 8-level phase modulated optical signals at a symbol rate equal to the bit rate of each input data channel. After transmission through optical fiber, the optical signals are demodulated optically and the original data are recovered by the balanced detectors with direct detection.
摘要翻译：发明了用于频谱有效的光通信系统的用于生成，传输和检测差分编码的8级相位调制光信号的有效系统，装置，装置和方法。它包括电编码器和用于产生差分编码的8电平相位调制光信号的光编码器和用于检测光信号的光解调器和平衡检波器。光信号通过光纤链路或空气传输。电编码器将三个独立的数据通道映射成三个差分编码的数据序列。在光学编码器中，来自电编码器的编码数据序列驱动光调制器，以等于每个输入数据信道的比特率的符号速率产生差分编码的8电平相位调制光信号。在通过光纤传输之后，光信号被光学解调，原始数据由直接检测的平衡检测器恢复。

25. 发明授权

US5304255A Photovoltaic cell with photoluminescent plasma polymerized film 失效
标题翻译：具有光致发光等离子体聚合膜的光电池
公开(公告)号：US5304255A
公开(公告)日：1994-04-19
申请号：US955
申请日：1993-01-05
申请人： Guifang Li , Jeffrey A. Tobin , Denice D. Denton
发明人： Guifang Li , Jeffrey A. Tobin , Denice D. Denton
IPC分类号： C08J7/00 , C09K11/06 , C23C16/505 , H01L31/052 , H01L31/055
CPC分类号： C23C16/505 , H01L31/055 , B05D1/62 , Y02E10/52
摘要： Plasma polymerized organic films deposited on a substrate exhibit broad bandwidth photoluminescence after excitation with blue, violet, or ultraviolet light. The photoluminescent properties of such organic films may be exploited by using such films as wavelength transformers for photovoltaic materials, as organic solid-state gain media, as process quality control tools, and as color-correcting coatings for fluorescent lamps.
摘要翻译：沉积在基板上的等离子体聚合的有机膜在用蓝色，紫色或紫外光激发后表现出宽带宽的光致发光。这种有机膜的光致发光性能可以通过使用诸如作为光电材料的波长变换器，作为有机固态增益介质，作为工艺质量控制工具以及用作荧光灯的颜色校正涂层的膜来利用。

26. 发明授权

US08813522B2 Silicon photonic fiber and method of manufacture 有权
标题翻译：硅光子纤维及其制造方法
公开(公告)号：US08813522B2
公开(公告)日：2014-08-26
申请号：US12578958
申请日：2009-10-14
申请人： Guifang Li , Fatih Yaman
发明人： Guifang Li , Fatih Yaman
IPC分类号： G02B6/02
CPC分类号： C01B33/023 , G02B6/02328 , G02B6/02361 , G02B6/102 , G02B2006/12061 , G02B2006/12169
摘要： Methods of converting silica to silicon and fabricating silicon photonic crystal fiber (PCF) are disclosed. Silicon photonic crystal fibers made by the fabrication methods are also disclosed. One fabrication method includes: sealing silica PCF and a quantity of magnesium within a container, the quantity of magnesium defined by 2Mg(g)+SiO2(s)→2MgO(s)+Si(s); converting silica PCF to a reacted PCF through magnesiothermic reduction; and converting the reacted PCF to the fabricated silicon PCF by selective dissolution of the reacted PCF in an acid. Another fabrication method includes: adding silica PCF and a quantity of solid magnesium to an unsealed container, the quantity of magnesium substantially in excess of that defined by 2Mg(g)+SiO2(s)→2MgO(s)+Si(s); converting silica PCF to a reacted PCF through magnesiothermic reduction; and converting the reacted PCF to the fabricated silicon PCF by selective dissolution of the reacted PCF in an acid.
摘要翻译：公开了将二氧化硅转化为硅并制造硅光子晶体光纤（PCF）的方法。还公开了通过制造方法制造的硅光子晶体光纤。一种制造方法包括：将二氧化硅PCF和一定量的镁密封在容器内，由2Mg（g）+ SiO 2（s）→2MgO（s）+ Si（s）限定的镁的量; 通过氧化镁还原将二氧化硅PCF转化为反应的PCF; 并通过将反应的PCF选择性溶解在酸中将反应的PCF转化成制造的硅PCF。另一种制造方法包括：将二氧化硅PCF和一定量的固体镁添加到未密封的容器中，镁的量基本上超过由2Mg（g）+ SiO 2（s）→2MgO（s）+ Si（s）限定的镁; 通过氧化镁还原将二氧化硅PCF转化为反应的PCF; 并通过将反应的PCF选择性溶解在酸中将反应的PCF转化成制造的硅PCF。

27. 发明授权

US08805209B2 Efficient computation and compensation of linear and nonlinear distortion in dispersion-managed fiber-opic transmission 有权
标题翻译：色散管理光纤传输中线性和非线性失真的有效计算和补偿
公开(公告)号：US08805209B2
公开(公告)日：2014-08-12
申请号：US13404770
申请日：2012-02-24
申请人： Guifang Li , Likai Zhu
发明人： Guifang Li , Likai Zhu
IPC分类号： H04B10/06
CPC分类号： H04B10/25133 , H04B10/2543
摘要： In one embodiment, a method for performing nonlinearity compensation on a dispersion-managed optical signal that was transmitted over an optical communication link, the method including virtually dividing the communication link into a plurality of steps, performing lumped dispersion compensation on a received optical signal to obtain a waveform upon which digital backward propagation (DBP) can be performed, performing DBP by performing dispersion compensation and nonlinearity compensation for each step, and generating an estimate of the transmitted signal based upon the performed DBP.
摘要翻译：在一个实施例中，一种在通过光通信链路传输的色散管理光信号上执行非线性补偿的方法，该方法包括将通信链路实际上划分为多个步骤，对所接收的光信号执行集中色散补偿，获得能够执行数字反向传播（DBP）的波形，通过对每个步骤执行色散补偿和非线性补偿来执行DBP，以及基于执行的DBP生成发送信号的估计。

28. 发明授权

US08699889B2 Polarization demultiplexing using independent component analysis 有权
标题翻译：使用独立分量分析的极化解复用
公开(公告)号：US08699889B2
公开(公告)日：2014-04-15
申请号：US13071499
申请日：2011-03-24
申请人： Xiaobo Xie , Guifang Li , Fatih Yaman
发明人： Xiaobo Xie , Guifang Li , Fatih Yaman
IPC分类号： H04B10/06 , H04J14/04
CPC分类号： H04J14/06
摘要： Systems and methods of polarization demultiplexing are disclosed. One such method receives a transmitted polarization-multiplexed optical signal The polarization-multiplexed has multiple polarizations, each of which represents an independent data stream. The method converts the polarization-multiplexed optical signal to a corresponding polarization-multiplexed electrical signal. The method determines an inverse transformation matrix that meets an independent component analysis (ICA) criterion. The method applies the inverse transformation matrix to the polarization-multiplexed electrical signal, which produces a polarization-demultiplexed electrical signal. The method phase estimates the polarization-demultiplexed electrical signal to recover the data stream.
摘要翻译：公开了偏振解复用的系统和方法。一种这样的方法接收发送的偏振复用光信号。偏振复用具有多个极化，每个偏振表示独立的数据流。该方法将偏振复用光信号转换为对应的偏振复用电信号。该方法确定满足独立分量分析（ICA）标准的逆变换矩阵。该方法将逆变换矩阵应用于偏振复用电信号，产生偏振解复用的电信号。方法阶段估计偏振解复用的电信号以恢复数据流。

29. 发明申请

US20130064554A1 Optical Transmission Using Few-Mode Fibers 审中-公开
标题翻译：使用少量光纤的光传输
公开(公告)号：US20130064554A1
公开(公告)日：2013-03-14
申请号：US13695864
申请日：2011-01-27
申请人： Guifang Li , Fatih Yaman , Xiaobo Xie , Likai Zhu , Neng Bai , Cen Xia
发明人： Guifang Li , Fatih Yaman , Xiaobo Xie , Likai Zhu , Neng Bai , Cen Xia
IPC分类号： H04B10/13
CPC分类号： G02B6/02009 , G02B6/02042 , G02B6/02347 , G02B6/028 , G02B6/03627
摘要： In some embodiments, an optical transmission system includes a few-mode fiber that supports at least 2 spatial modes but no more than 50 spatial modes.
摘要翻译：在一些实施例中，光传输系统包括支持至少2个空间模式但不超过50个空间模式的多模光纤。

30. 发明授权

US08326159B2 Electronic compensation of impairments using wavelet filters for backward propagation 有权
标题翻译：使用小波滤波器进行反向传播的电子补偿
公开(公告)号：US08326159B2
公开(公告)日：2012-12-04
申请号：US12727532
申请日：2010-03-19
申请人： Guifang Li , Gilad Goldfarb
发明人： Guifang Li , Gilad Goldfarb
IPC分类号： H04B10/06
CPC分类号： H04B10/2507 , H04J14/002
摘要： Systems and methods of compensating for transmission impairment over an optical transmission channel are disclosed. The optical transmission channel includes an optical fiber and an optical amplifier. One such method includes: receiving an optical signal which has been distorted in the physical domain by an optical transmission channel; and solving a non-linear Schrödinger equation (NLSE) using a split-step Fourier Method (SSFM). The NLSE describes a virtual optical fiber corresponding to the optical fiber. The SSFM implements a linear operator with a wavelet-based FIR filter.
摘要翻译：公开了在光传输通道上补偿传输损伤的系统和方法。光传输通道包括光纤和光放大器。一种这样的方法包括：通过光传输信道接收已经在物理域中失真的光信号; 并使用分步傅立叶方法（SSFM）求解非线性薛定er方程（NLSE）。 NLSE描述了对应于光纤的虚拟光纤。 SSFM使用基于小波的FIR滤波器实现线性算子。

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