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1. 发明授权

US06453095B2 Tuning of optical dispersion by using a tunable fiber bragg grating 失效
标题翻译：通过使用可调谐光纤布拉格光栅来调整光学色散
公开(公告)号：US06453095B2
公开(公告)日：2002-09-17
申请号：US09827819
申请日：2001-04-06
申请人： Kai-Ming Feng , Jin-Xing Cai , Alan E. Willner , Victor Grubsky , Dmitry Starodubov , Jack Feinberg
发明人： Kai-Ming Feng , Jin-Xing Cai , Alan E. Willner , Victor Grubsky , Dmitry Starodubov , Jack Feinberg
IPC分类号： G02B634
CPC分类号： G02B6/29322 , G02B6/02085 , G02B6/02109 , G02B6/02138 , G02B6/022 , G02B6/2932 , G02B6/29394 , G02B6/29395 , G02B6/4215 , G02F1/011 , G02F1/0115 , G02F1/0126 , G02F1/0134 , G02F2201/307 , H01S3/0057 , H04B10/2519 , H04B2210/258
摘要： Techniques and devices based on a wave-guiding element which has a spatial grating pattern that is an oscillatory variation along its optic axis. The wave-guiding element is configured to receive an input optical signal and to produce an output optical signal by reflection within a Bragg reflection band produced by the spatial grating pattern so as to produce time delays of different reflected spectral components as a nonlinear function of spatial positions along said optic axis at which the different reflected spectral components are respectively reflected. Such a wave-guiding element may be a nonlinearly chirped fiber grating A control unit may be engaged to the wave-guiding element and is operable to change a property of the spatial grating pattern along the optic axis to tune at least relative time delays of the different reflected spectral components nonlinearly with respect to wavelength.
摘要翻译：基于波导元件的技术和装置，其具有沿其光轴的振荡变化的空间光栅图案。波导元件被配置为接收输入光信号并且通过由空间光栅图案产生的布拉格反射带内的反射产生输出光信号，以便产生不同反射光谱分量的时间延迟作为空间的非线性函数沿着所述光轴的位置分别反射不同的反射光谱分量。这种波导元件可以是非线性啁啾光纤光栅。控制单元可以接合到波导元件，并且可操作以改变沿着光轴的空间光栅图案的特性，以调谐至少相对于时间延迟不同的反射光谱分量相对于波长非线性。

2. 发明授权

US5982963A Tunable nonlinearly chirped grating 失效
标题翻译：可调非线性啁啾光栅
公开(公告)号：US5982963A
公开(公告)日：1999-11-09
申请号：US27345
申请日：1998-02-20
申请人： Kai-Ming Feng , Jin-Xing Cai , Alan Eli Willner , Victor Grubsky , Dmtry Starodubov , Jack Feinberg
发明人： Kai-Ming Feng , Jin-Xing Cai , Alan Eli Willner , Victor Grubsky , Dmtry Starodubov , Jack Feinberg
IPC分类号： G02B26/00 , G02B6/02 , G02F1/01 , H01S3/00 , H01S3/30 , H01S5/14 , H04B10/02 , H04B10/18 , G02B6/34
CPC分类号： G02B6/02085 , G02F1/011 , G02F1/0115 , G02F1/0134 , H01S3/0057 , H04B10/2519 , G02B6/02138 , G02B6/022 , G02F1/0126 , G02F2201/307
摘要： A nonlinearly chirped fiber grating for achieving tunable dispersion compensation, chirp reduction in directly modulated diode lasers, and optical pulse manipulation. A dynamical dispersion compensation mechanism can be implemented in a fiber communication system based on such a nonlinearly chirped fiber grating.
摘要翻译：用于实现可调谐色散补偿的非线性啁啾光纤光栅，直接调制二极管激光器中的啁啾抑制以及光脉冲操作。可以在基于这种非线性啁啾光纤光栅的光纤通信系统中实现动态色散补偿机制。

3. 发明授权

US06330383B1 Disperson compensation by using tunable nonlinearly-chirped gratings 有权
标题翻译：通过使用可调谐非线性啁啾光栅来消除补偿
公开(公告)号：US06330383B1
公开(公告)日：2001-12-11
申请号：US09253645
申请日：1999-02-19
申请人： Jin-Xing Cai , Kai-Ming Feng , Alan E. Willner , Jiangde Peng , Sanggeon Lee , Reza Khosravani
发明人： Jin-Xing Cai , Kai-Ming Feng , Alan E. Willner , Jiangde Peng , Sanggeon Lee , Reza Khosravani
IPC分类号： G02B634
CPC分类号： G02B6/29322 , G02B6/02085 , G02B6/02109 , G02B6/02138 , G02B6/022 , G02B6/2932 , G02B6/29394 , G02B6/29395 , G02B6/4215 , G02F1/011 , G02F1/0115 , G02F1/0126 , G02F1/0134 , G02F2201/307 , H01S3/0057 , H04B10/2519 , H04B2210/258
摘要： A nonlinearly chirped fiber grating for achieving tunable dispersion compensation, dispersion slope compensation, polarization mode dispersion, chirp reduction in directly modulated diode lasers, and optical pulse manipulation. A dynamical dispersion compensation mechanism can be implemented in a fiber communication system based on such a nonlinearly chirped fiber grating.
摘要翻译：用于实现可调谐色散补偿，色散斜率补偿，偏振模色散，直接调制二极管激光器中的啁啾抑制以及光脉冲操作的非线性啁啾光纤光栅。可以在基于这种非线性啁啾光纤光栅的光纤通信系统中实现动态色散补偿机制。

4. 发明申请

US20060204171A1 Optical transmission system including dispersion slope compensation 有权
标题翻译：光传输系统包括色散斜率补偿
公开(公告)号：US20060204171A1
公开(公告)日：2006-09-14
申请号：US11363511
申请日：2006-02-27
申请人： Jin-Xing Cai , Dmitri Foursa , Carl Davidson , Alexei Pilipetskii , Morten Nissov , Neal Bergano
发明人： Jin-Xing Cai , Dmitri Foursa , Carl Davidson , Alexei Pilipetskii , Morten Nissov , Neal Bergano
IPC分类号： G02B6/28
CPC分类号： H04B10/25253 , G02B6/29376 , H04B10/25133
摘要： A WDM optical transmission system and method uses slope compensation at the transmit terminal and/or the receive terminal. The system and method may be used with modulation formats with a short pulse width and a broad optical spectrum.
摘要翻译： WDM光传输系统和方法在发射终端和/或接收终端处使用斜率补偿。该系统和方法可以使用具有短脉冲宽度和宽光谱的调制格式。

5. 发明授权

US08437644B2 Vestigial phase shift keying modulation and systems and methods incorporating same 失效
标题翻译：残留相移键控调制及其结合的系统和方法
公开(公告)号：US08437644B2
公开(公告)日：2013-05-07
申请号：US13033084
申请日：2011-02-23
申请人： Hongbin Zhang , Carl R. Davidson , Jin-Xing Cai , Yi Cai
发明人： Hongbin Zhang , Carl R. Davidson , Jin-Xing Cai , Yi Cai
IPC分类号： H04B10/04
CPC分类号： H04J14/02 , H04B10/5561
摘要： In general, optical communication systems and methods may implement a vestigial phase shift keying (PSK) modulation format to enable relatively high transmission rates with closer channel spacing and improved signal detection in a WDM optical communication system. A PSK modulated signal may be correlated with a phase shift, for example, using a delay line interferometer (DLI), to generate a vestigial PSK signal, which may be pre-filtered, combined, and transmitted in the WDM system. The correlation with a phase shift compresses and shifts the signal spectrum such that intersymbol interference (ISI) length may be reduced with minimal increase in the bit error rate (BER) when the vestigial PSK signal is detected.
摘要翻译：通常，光通信系统和方法可以实现残留相移键控（PSK）调制格式，以在WDM光通信系统中实现具有更近的信道间隔和改进的信号检测的相对较高的传输速率。 PSK调制信号可以与例如使用延迟线干涉仪（DLI）的相移相关，以产生可在WDM系统中预滤波，组合和发送的残留PSK信号。与相移的相关性对信号频谱进行压缩和移位，使得当检测到残留PSK信号时，码间干扰（ISI）长度可以随着误码率（BER）的最小增加而减小。

6. 发明申请

US20120213521A1 VESTIGIAL PHASE SHIFT KEYING MODULATION AND SYSTEMS AND METHODS INCORPORATING SAME 失效
标题翻译：相关相位调整关键调节与系统及其并入的方法
公开(公告)号：US20120213521A1
公开(公告)日：2012-08-23
申请号：US13033084
申请日：2011-02-23
申请人： Hongbin Zhang , Carl R. Davidson , Jin-Xing Cai , Yi Cai
发明人： Hongbin Zhang , Carl R. Davidson , Jin-Xing Cai , Yi Cai
IPC分类号： H04J14/02 , H04B10/04
CPC分类号： H04J14/02 , H04B10/5561
摘要： In general, optical communication systems and methods may implement a vestigial phase shift keying (PSK) modulation format to enable relatively high transmission rates with closer channel spacing and improved signal detection in a WDM optical communication system. A PSK modulated signal may be correlated with a phase shift, for example, using a delay line interferometer (DLI), to generate a vestigial PSK signal, which may be pre-filtered, combined, and transmitted in the WDM system. The correlation with a phase shift compresses and shifts the signal spectrum such that intersymbol interference (ISI) length may be reduced with minimal increase in the bit error rate (BER) when the vestigial PSK signal is detected.
摘要翻译：通常，光通信系统和方法可以实现残留相移键控（PSK）调制格式，以在WDM光通信系统中实现具有更近的信道间隔和改进的信号检测的相对较高的传输速率。 PSK调制信号可以与例如使用延迟线干涉仪（DLI）的相移相关，以产生可在WDM系统中预滤波，组合和发送的残留PSK信号。与相移的相关性对信号频谱进行压缩和移位，使得当检测到残留PSK信号时，码间干扰（ISI）长度可以随着误码率（BER）的最小增加而减小。

7. 发明申请

US20060140632A1 System and method for mitigating dispersion slope in an optical communication system 失效
公开(公告)号：US20060140632A1
公开(公告)日：2006-06-29
申请号：US11024235
申请日：2004-12-28
申请人： Georg Mohs , Jin-Xing Cai , Morten Nissov
发明人： Georg Mohs , Jin-Xing Cai , Morten Nissov
IPC分类号： H04J14/02
CPC分类号： H04B10/2507 , H04B10/66 , H04J14/0227 , H04J14/0246 , H04J14/0279
摘要： A system and method for mitigating dispersion slope is capable of reducing the performance impact on an optical communication system caused by dispersion slope. The system and method receives an optical signal, demultiplexes the optical signal and optically filters the demultiplexed optical signals. The optical filters may have a bandwidth that is wide with respect to the demultiplexed optical signals and narrow with respect to the original optical signal.

8. 发明授权

US08805204B2 Generating higher-level quadrature amplitude modulation (QAM) using a delay line interferometer and systems and methods incorporating same 有权
标题翻译：使用延迟线干涉仪生成更高等级的正交幅度调制（QAM），并结合相同的系统和方法
公开(公告)号：US08805204B2
公开(公告)日：2014-08-12
申请号：US13032982
申请日：2011-02-23
申请人： Hongbin Zhang , Jin-Xing Cai , Yu Sun , Carl R. Davidson , Yi Cai , Georg Heinrich Mohs
发明人： Hongbin Zhang , Jin-Xing Cai , Yu Sun , Carl R. Davidson , Yi Cai , Georg Heinrich Mohs
IPC分类号： H04B10/04 , H04B10/12
CPC分类号： H04J14/02 , H04B10/541
摘要： In general, optical communication systems and methods may generate higher-level nmQAM from nQAM signals using one or more delay line interferometers (DLIs) arranged in various configurations. The nQAM signals may be generated by a lower-level modulator, such as a BPSK modulator, QPSK modulator or lower-level QAM modulator, with binary driving signals. Different parameters of the DLIs, such as free spectral range (FSR), phase shift, and amplitude imbalance, may be selected to accomplish the desired higher-level nmQAM depending upon the nQAM signal.
摘要翻译：通常，光通信系统和方法可以使用以各种配置布置的一个或多个延迟线干涉仪（DLI）从nQAM信号产生更高级的nmQAM。 nQAM信号可以由具有二进制驱动信号的较低级调制器（例如BPSK调制器，QPSK调制器或低级QAM调制器）产生。可以选择DLI的不同参数，例如自由光谱范围（FSR），相移和幅度不平衡，以根据nQAM信号来实现期望的更高级别的nmQAM。

9. 发明授权

US08270847B2 Polarization multiplexing with different DPSK modulation schemes and system incorporating the same 失效
标题翻译：具有不同DPSK调制方案的极化复用和包含其的系统
公开(公告)号：US08270847B2
公开(公告)日：2012-09-18
申请号：US12364171
申请日：2009-02-02
申请人： Hongbin Zhang , Jin-Xing Cai
发明人： Hongbin Zhang , Jin-Xing Cai
IPC分类号： H04B10/04
CPC分类号： H04B10/5053 , H04B10/50577 , H04B10/5561 , H04B10/677 , H04J14/06
摘要： Polarization multiplexing with different differential phase shift keying (DPSK) schemes generally uses DPSK modulated signals modulated using different DPSK modulation schemes and combined with orthogonal polarizations relative to each other. The different DPSK modulation schemes may use different DPSK phase shifts to represent data, such as a regular DPSK modulation scheme and a π/2 DPSK modulation scheme. By using different DPSK modulation schemes to represent data on the orthogonally polarized signals, the DPSK demodulators may effectively separate the orthogonally polarized signals using the property of the DPSK receivers. To optimize performance, the DPSK modulated signals may also be bit-interleaved when combined with orthogonal polarization.
摘要翻译：使用不同差分相移键控（DPSK）方案的偏振复用通常使用使用不同DPSK调制方案调制的DPSK调制信号并相对于彼此结合正交偏振。不同的DPSK调制方案可以使用不同的DPSK相移来表示诸如常规DPSK调制方案和＆amp; R / DPSK调制方案的数据。通过使用不同的DPSK调制方案来表示正交极化信号上的数据，DPSK解调器可以使用DPSK接收机的性质来有效地分离正交偏振信号。为了优化性能，当与正交极化组合时，DPSK调制信号也可以被比特交织。

10. 发明授权

US07373040B2 Optical transmission system including dispersion slope compensation 失效
标题翻译：光传输系统包括色散斜率补偿
公开(公告)号：US07373040B2
公开(公告)日：2008-05-13
申请号：US11734987
申请日：2007-04-13
申请人： Jin-Xing Cai , Dmitri Foursa , Carl R. Davidson , Alexei N. Pilipetskii , Morten Nissov , Neal S. Bergano
发明人： Jin-Xing Cai , Dmitri Foursa , Carl R. Davidson , Alexei N. Pilipetskii , Morten Nissov , Neal S. Bergano
IPC分类号： G02B6/28
CPC分类号： H04B10/25253 , G02B6/29376 , H04B10/25133
摘要： A WDM optical transmission system and method uses slope compensation at the transmit terminal and/or the receive terminal. The system and method may be used with modulation formats with a short pulse width and a broad optical spectrum.
摘要翻译： WDM光传输系统和方法在发射终端和/或接收终端处使用斜率补偿。该系统和方法可以使用具有短脉冲宽度和宽光谱的调制格式。

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