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1. 发明授权

US08064767B2 Optical orthogonal frequency division multiplexed communications with coherent detection 有权
标题翻译：具有相干检测的光学正交频分复用通信
公开(公告)号：US08064767B2
公开(公告)日：2011-11-22
申请号：US12045765
申请日：2008-03-11
申请人： Isaac Shpantzer , Alexander Genusov , Yehouda Meiman , Jacob Khurgin
发明人： Isaac Shpantzer , Alexander Genusov , Yehouda Meiman , Jacob Khurgin
IPC分类号： H04J14/06
CPC分类号： H04B10/61 , G02B6/126 , G02B2006/12147 , H04B10/2575 , H04B10/611 , H04B10/614 , H04J14/06
摘要： The present invention provides a system and method of optical communications that utilize coherent detection technique and optical orthogonal frequency division multiplexing for phase encoded data transmission. In particular the invention addresses a device and method for digital polarization compensation of optical signals with up to 100 Gb/s transmission rate received via an optical link. The polarization compensation operates in two modes: acquisition mode and tracking mode. The polarization recovery is performed at the receiver side using the received digital signal conversion into frequency domain and separate reconstruction of the polarization state in each spectral component.
摘要翻译：本发明提供一种利用相干检测技术和光学正交频分复用进行相位编码数据传输的光通信系统和方法。特别地，本发明涉及用于经由光学链路接收的高达100Gb / s传输速率的光信号的数字偏振补偿的装置和方法。偏振补偿工作在两种模式：采集模式和跟踪模式。使用接收到的数字信号转换为频域并在每个频谱分量中分离重建偏振状态，在接收机侧执行偏振恢复。

2. 发明申请

US20080159758A1 OPTICAL ORTHOGONAL FREQUENCY DIVISION MULTIPLEXED COMMUNICATIONS WITH COHERENT DETECTION 有权
标题翻译：具有相干检测的光学正交频分多址通信
公开(公告)号：US20080159758A1
公开(公告)日：2008-07-03
申请号：US12045765
申请日：2008-03-11
申请人： Isaac Shpantzer , Alexander Genusov , Yehouda Meiman , Jacob Khurgin
发明人： Isaac Shpantzer , Alexander Genusov , Yehouda Meiman , Jacob Khurgin
IPC分类号： H04B10/06 , H04B10/00
CPC分类号： H04B10/61 , G02B6/126 , G02B2006/12147 , H04B10/2575 , H04B10/611 , H04B10/614 , H04J14/06
摘要： The present invention provides a system and method of optical communications that utilize coherent detection technique and optical orthogonal frequency division multiplexing for phase encoded data transmission. In particular the invention addresses a device and method for digital polarization compensation of optical signals with up to 100 Gb/s transmission rate received via an optical link. The polarization compensation operates in two modes: acquisition mode and tracking mode. The polarization recovery is performed at the receiver side using the received digital signal conversion into frequency domain and separate reconstruction of the polarization state in each spectral component.
摘要翻译：本发明提供一种利用相干检测技术和光学正交频分复用进行相位编码数据传输的光通信系统和方法。特别地，本发明涉及用于经由光学链路接收的高达100Gb / s传输速率的光信号的数字偏振补偿的装置和方法。偏振补偿工作在两种模式：采集模式和跟踪模式。使用接收到的数字信号转换为频域并在每个频谱分量中分离重建偏振状态，在接收机侧执行偏振恢复。

3. 发明授权

US07167651B2 System and method for code division multiplexed optical communication 有权
标题翻译：用于码分多路复用光通信的系统和方法
公开(公告)号：US07167651B2
公开(公告)日：2007-01-23
申请号：US09962243
申请日：2001-09-26
申请人： Isaac Shpantzer , Michael Tseytlin , Yaakov Achiam , Aviv Salamon , Israel Smilanski , Olga Ritterbush , Pak Shing Cho , Li Guoliang , Jacob Khurgin , Yehouda Meiman , Alper Demir , Peter Feldman , Peter Kinget , Nagendra Krishnapura , Jaijeet Roychowdhury , Joseph Schwarzwalder , Charles Sciabarra
发明人： Isaac Shpantzer , Michael Tseytlin , Yaakov Achiam , Aviv Salamon , Israel Smilanski , Olga Ritterbush , Pak Shing Cho , Li Guoliang , Jacob Khurgin , Yehouda Meiman , Alper Demir , Peter Feldman , Peter Kinget , Nagendra Krishnapura , Jaijeet Roychowdhury , Joseph Schwarzwalder , Charles Sciabarra
IPC分类号： H04J4/00 , H04B10/00 , H04B10/04 , H04B10/06
CPC分类号： H04J14/005 , H04B10/2543 , H04B10/2563 , H04B10/2572 , H04B10/505 , H04B10/506 , H04B10/508 , H04J14/02
摘要： A system for optical communication forms a family of orthogonal optical codes modulated by a data stream. The orthogonal codes are formed by creating a stream of evenly spaced-apart pulses using a pulse spreader circuit and modulating the pulses in amplitude and/or phase to form a family of orthogonal optical code words, each representing a symbol. A spreader calibration circuit is used to ensure accurate timing and modulation. Each code word is further modulated by a predetermined number of data bits. The data modulation scheme splits a code word into H and V components, and further processes the components prior to modulation with data, followed by recombining with a polarization beam combiner. The data-modulated code word is then sent, along with others to receiver. The received signal is detected and demodulated with the help of a symbol synchronization unit which establishes the beginning and end of the code words. A polarization mode distortion compensator at the receiver cooperates with a state of polarization compensator at the transmitter to mitigate polarization distortion in the fiber.
摘要翻译：用于光通信的系统形成由数据流调制的一系列正交光学代码。通过使用脉冲扩展电路产生均匀间隔脉冲的流并且在幅度和/或相位上调制脉冲以形成一系列正交光码字，每个表示符号，形成正交码。扩展器校准电路用于确保精确的定时和调制。每个码字被预定数量的数据位进一步调制。数据调制方案将代码字分解为H和V分量，并且在用数据调制之前进一步处理分量，随后与偏振束组合器重组。然后将数据调制码字与其他码字一起发送到接收机。借助于确定代码字的开始和结束的符号同步单元来检测和解调所接收的信号。接收器处的偏振模式失真补偿器与发射机处的偏振补偿器的状态协调，以减轻光纤中的偏振失真。

4. 发明授权

US07693428B2 Optical orthogonal frequency division multiplexed communications with nonlinearity compensation 有权
标题翻译：光学正交频分复用通信与非线性补偿
公开(公告)号：US07693428B2
公开(公告)日：2010-04-06
申请号：US12418060
申请日：2009-04-03
申请人： Jacob Khurgin , Isaac Shpantzer
发明人： Jacob Khurgin , Isaac Shpantzer
IPC分类号： H04B10/04 , H04B10/06
CPC分类号： H04J14/02 , H04B10/61 , H04B10/611 , H04B10/613 , H04B10/614 , H04B10/6163 , H04B10/6165 , H04B10/63 , H04J14/06 , H04L27/18 , H04L27/2096 , H04L27/2697 , H04L2027/0018
摘要： The present invention discloses a transmitter and receiver for optical communications system, which provide compensation of the optical link nonlinearity. M-PSK modulating is used for data embedding in an optical signal in each WDM channel using orthogonal frequency division multiplexing (OFDM) technique. At the receiver side electrical output signals from a coherent optical receiver are processed digitally with the link nonlinearity compensation. It is followed by the signal conversion into frequency domain and information recovery from each subcarrier of the OFDM signal. At the transmitter side an OFDM encoder provides a correction of I and Q components of a M-PSK modulator driving signal to compensate the link nonlinearity prior to sending the optical signal to the receiver.
摘要翻译：本发明公开了一种用于光通信系统的发射机和接收机，其提供了光链路非线性的补偿。使用正交频分复用（OFDM）技术，M-PSK调制用于每个WDM信道中的光信号中的数据嵌入。在接收机侧，来自相干光接收机的电输出信号用链路非线性补偿数字地处理。随后将信号转换成频域，并从OFDM信号的每个子载波进行信息恢复。在发射机侧，OFDM编码器提供M-PSK调制器驱动信号的I和Q分量的校正，以在将光信号发送到接收机之前补偿链路非线性。

5. 发明申请

US20090190929A1 OPTICAL ORTHOGONAL FREQUENCY DIVISION MULTIPLEXED COMMUNICATIONS WITH NONLINEARITY COMPENSATION 有权
标题翻译：具有非线性补偿的光学正交频分多路通信
公开(公告)号：US20090190929A1
公开(公告)日：2009-07-30
申请号：US12418060
申请日：2009-04-03
申请人： Jacob Khurgin , Isaac Shpantzer
发明人： Jacob Khurgin , Isaac Shpantzer
IPC分类号： H04J14/02
CPC分类号： H04J14/02 , H04B10/61 , H04B10/611 , H04B10/613 , H04B10/614 , H04B10/6163 , H04B10/6165 , H04B10/63 , H04J14/06 , H04L27/18 , H04L27/2096 , H04L27/2697 , H04L2027/0018
摘要： The present invention discloses a transmitter and receiver for optical communications system, which provide compensation of the optical link nonlinearity. M-PSK modulating is used for data embedding in an optical signal in each WDM channel using orthogonal frequency division multiplexing (OFDM) technique. At the receiver side electrical output signals from a coherent optical receiver are processed digitally with the link nonlinearity compensation. It is followed by the signal conversion into frequency domain and information recovery from each subcarrier of the OFDM signal. At the transmitter side an OFDM encoder provides a correction of I and Q components of a M-PSK modulator driving signal to compensate the link nonlinearity prior to sending the optical signal to the receiver.
摘要翻译：本发明公开了一种用于光通信系统的发射机和接收机，其提供了光链路非线性的补偿。使用正交频分复用（OFDM）技术，M-PSK调制用于每个WDM信道中的光信号中的数据嵌入。在接收机侧，来自相干光接收机的电输出信号用链路非线性补偿数字地处理。随后将信号转换成频域，并从OFDM信号的每个子载波进行信息恢复。在发射机侧，OFDM编码器提供M-PSK调制器驱动信号的I和Q分量的校正，以在将光信号发送到接收机之前补偿链路非线性。

6. 发明申请

US20100135656A1 OPTICAL ORTHOGONAL FREQUENCY DIVISION MULTIPLEXED COMMUNICATIONS WITH NONLINEARITY COMPENSATION 审中-公开
标题翻译：具有非线性补偿的光学正交频分多路通信
公开(公告)号：US20100135656A1
公开(公告)日：2010-06-03
申请号：US12696957
申请日：2010-01-29
申请人： Jacob Khurgin , Isaac Shpantzer
发明人： Jacob Khurgin , Isaac Shpantzer
IPC分类号： H04B10/00 , H04B10/06 , H04B10/04 , H04J14/00 , H04L27/28
CPC分类号： H04J14/02 , H04B10/61 , H04B10/611 , H04B10/613 , H04B10/614 , H04B10/6163 , H04B10/6165 , H04B10/63 , H04J14/06 , H04L27/18 , H04L27/2096 , H04L27/2697 , H04L2027/0018
摘要： The present invention discloses a transmitter and receiver for optical communications system, which provide compensation of the optical link nonlinearity. M-PSK modulating is used for data embedding in an optical signal in each WDM channel using orthogonal frequency division multiplexing (OFDM) technique. At the receiver side electrical output signals from a coherent optical receiver are processed digitally with the link nonlinearity compensation. It is followed by the signal conversion into frequency domain and information recovery from each subcarrier of the OFDM signal. At the transmitter side an OFDM encoder provides a correction of I and Q components of a M-PSK modulator driving signal to compensate the link nonlinearity prior to sending the optical signal to the receiver.
摘要翻译：本发明公开了一种用于光通信系统的发射机和接收机，其提供了光链路非线性的补偿。使用正交频分复用（OFDM）技术，M-PSK调制用于每个WDM信道中的光信号中的数据嵌入。在接收机侧，来自相干光接收机的电输出信号用链路非线性补偿数字地处理。随后将信号转换成频域，并从OFDM信号的每个子载波进行信息恢复。在发射机侧，OFDM编码器提供M-PSK调制器驱动信号的I和Q分量的校正，以在将光信号发送到接收机之前补偿链路非线性。

7. 发明申请

US20090236528A1 CHEMICAL SENSING SYSTEM AND METHOD 有权
标题翻译：化学传感系统及方法
公开(公告)号：US20090236528A1
公开(公告)日：2009-09-24
申请号：US12361664
申请日：2009-01-29
申请人： Isaac Shpantzer , Jacob Khurgin , Arkady Kaplan , Pak Shing Cho , Yaakov Achiam
发明人： Isaac Shpantzer , Jacob Khurgin , Arkady Kaplan , Pak Shing Cho , Yaakov Achiam
IPC分类号： G01J5/02 , G01J3/44
CPC分类号： G01J3/02 , G01J3/0205 , G01J3/0218 , G01J3/45 , G01J9/04 , G01N21/171 , G01N21/636 , G01N21/65 , G01N2021/1793 , G01N2021/655 , G02B26/06
摘要： A photo-thermal, interferometric spectroscopy system is disclosed that provides information about a chemical, such as explosives and the like, at a remote location. It may be used for solid residue detection on a surface. The system includes a novel light detector system with a matrix of optical elements focusing portions of a received light beam on input waveguides of an optical combiner. The combiner adjusts the phases of the received beam portions and combines them together to maximize the intensity of an output beam. The output beam is detected by a detector, and information about at least one of, absorption spectrum and concentration of the chemical is recovered. In the preferred embodiment the detector is a coherent detector based on 90-degrees optical hybrid.
摘要翻译：公开了一种光热干涉光谱系统，其在远程位置提供关于化学物质（例如爆炸物等）的信息。它可用于表面上的固体残留物检测。该系统包括具有光学元件矩阵的新型光检测器系统，将接收光束的部分聚焦在光合并器的输入波导上。组合器调整接收的光束部分的相位并将它们组合在一起以最大化输出光束的强度。输出光束由检测器检测，并且回收关于化学物质的吸收光谱和浓度中的至少一个的信息。在优选实施例中，检测器是基于90度光学混合的相干检测器。

8. 发明申请

US20070133918A1 QUADRATURE MODULATOR WITH FEEDBACK CONTROL AND OPTICAL COMMUNICATIONS SYSTEM USING THE SAME 有权
标题翻译：具有反馈控制的平衡调制器和使用该反馈控制的光通信系统
公开(公告)号：US20070133918A1
公开(公告)日：2007-06-14
申请号：US11679376
申请日：2007-02-27
申请人： Pak Shing Cho , Jacob Khurgin , Isaac Shpantzer
发明人： Pak Shing Cho , Jacob Khurgin , Isaac Shpantzer
IPC分类号： G02F1/01 , G02F1/035
CPC分类号： G02F1/225 , G02F2201/126 , G02F2203/06 , H04B10/2543 , H04B10/505 , H04B10/5053 , H04B10/5057 , H04B10/50577 , H04B10/508 , H04B10/532 , H04B10/541 , H04B10/5561 , H04B10/60 , H04J14/005 , H04J14/02 , H04J14/08 , H04L7/0075
摘要： The method and system are disclosed for automatic feedback control of integrated optical quadrature modulator for generation of optical quaternary phase-shift-keyed signal in coherent optical communications. The method comprises the steps of detecting at least a part of an output optical signal from the QPSK modulator, extracting of a particular portion of the output signal in frequency domain, and processing the signal in frequency domain to optimize the transmission of an optical link. The system and method of optical communications in fiber or free space are disclosed that implement the quadrature data modulator with automatic feedback control.
摘要翻译：公开了用于在相干光通信中生成光四级相移键控信号的集成光学正交调制器的自动反馈控制的方法和系统。该方法包括以下步骤：检测来自QPSK调制器的输出光信号的至少一部分，在频域中提取输出信号的特定部分，以及处理频域中的信号以优化光链路的传输。公开了光纤或自由空间中的光通信的系统和方法，其实现具有自动反馈控制的正交数据调制器。

9. 发明授权

US08050351B2 Quadrature modulator with feedback control and optical communications system using the same 有权
标题翻译：具有反馈控制和光通信系统的正交调制器
公开(公告)号：US08050351B2
公开(公告)日：2011-11-01
申请号：US11679376
申请日：2007-02-27
申请人： Pak Shing Cho , Jacob Khurgin , Isaac Shpantzer
发明人： Pak Shing Cho , Jacob Khurgin , Isaac Shpantzer
IPC分类号： H04L27/00
CPC分类号： G02F1/225 , G02F2201/126 , G02F2203/06 , H04B10/2543 , H04B10/505 , H04B10/5053 , H04B10/5057 , H04B10/50577 , H04B10/508 , H04B10/532 , H04B10/541 , H04B10/5561 , H04B10/60 , H04J14/005 , H04J14/02 , H04J14/08 , H04L7/0075
摘要： The method and system are disclosed for automatic feedback control of integrated optical quadrature modulator for generation of optical quaternary phase-shift-keyed signal in coherent optical communications. The method comprises the steps of detecting at least a part of an output optical signal from the QPSK modulator, extracting of a particular portion of the output signal in frequency domain, and processing the signal in frequency domain to optimize the transmission of an optical link. The system and method of optical communications in fiber or free space are disclosed that implement the quadrature data modulator with automatic feedback control.
摘要翻译：公开了用于在相干光通信中生成光四级相移键控信号的集成光学正交调制器的自动反馈控制的方法和系统。该方法包括以下步骤：检测来自QPSK调制器的输出光信号的至少一部分，在频域中提取输出信号的特定部分，以及处理频域中的信号以优化光链路的传输。公开了光纤或自由空间中的光通信的系统和方法，其实现具有自动反馈控制的正交数据调制器。

10. 发明授权

US07949262B2 Space diversity receiver for optical communications 有权
标题翻译：用于光通信的空间分集接收机
公开(公告)号：US07949262B2
公开(公告)日：2011-05-24
申请号：US12392559
申请日：2009-02-25
申请人： Pak Shing Cho , Jacob Khurgin , Isaac Shpantzer
发明人： Pak Shing Cho , Jacob Khurgin , Isaac Shpantzer
IPC分类号： G02B6/26 , H04B10/06
CPC分类号： B82Y20/00 , G02B6/1225 , H04B10/11
摘要： An optical beam combiner is provided, which allows efficient collection of light for various applications: non-line of sight and free-space optical communications, remote sensing, optical imaging and others. A multitude of transverse scattered optical beam portions is captured by the multi-aperture array positioned perpendicular to the beam projection direction. These beam portions are combined first into a single optical waveguide with modulating the beam portions phase and coupling ratio of directional couplers in the optical beam combiner tuned to maximize the final output power. A portion of the output beam is used for the power detection and forming a feedback signal for the phases and coupling ratios adjustment. The data is recovered from the received optical beam using coherent detection.
摘要翻译：提供了一种光束组合器，其允许有效收集用于各种应用的光：非视距和自由空间光通信，遥感，光学成像等。多个横向散射光束部分被垂直于光束投影方向定位的多孔径阵列捕获。这些光束部分首先组合成单个光波导，调制光束组合器中的定向耦合器的光束部分相位和耦合比，以最大化最终输出功率。输出光束的一部分用于功率检测，并形成相位和耦合比调整的反馈信号。使用相干检测从接收的光束恢复数据。

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