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1. 发明申请

US20080050125A1 INTRA-CHANNEL NONLINEARITY COMPENSATION FOR OPTICAL DATA COMMUNICATIONS 有权
标题翻译：光通信数据通道的通道非线性补偿
公开(公告)号：US20080050125A1
公开(公告)日：2008-02-28
申请号：US11382815
申请日：2006-05-11
申请人： Rene Jean Essiambre , Chongjin Xie
发明人： Rene Jean Essiambre , Chongjin Xie
IPC分类号： H04B10/04 , H04B10/12
CPC分类号： H04B10/25137 , H04B10/25133
摘要： An arrangement is described for compensating intra-channel nonlinearities in an optical communications system which combines optical dispersion compensation with electronic pre-distortion (EPD). EPD with moderate lookup table size can effectively suppress intra-channel nonlinearities over optical transmission links incorporating optical dispersion compensation. The arrangement can be implemented for a variety of optical communications systems, including 10 Gb/s, 40 Gb/s and higher bit rate systems as well as single-channel and wavelength-division multiplexing (WDM) systems.
摘要翻译：描述了将光学色散补偿与电子预失真（EPD）组合的光通信系统中的用于补偿信道内非线性的装置。具有中等查找表大小的EPD可以有效地抑制包含光色散补偿的光传输链路的通道内非线性。该装置可以实现用于各种光通信系统，包括10Gb / s，40Gb / s和更高比特率系统，以及单通道和波分复用（WDM）系统。

2. 发明授权

US07474860B2 Optimum sample spacing in over-sampled maximum likelihood sequence estimation receivers 有权
标题翻译：过采样最大似然序列估计接收机中的最佳采样间隔
公开(公告)号：US07474860B2
公开(公告)日：2009-01-06
申请号：US11306174
申请日：2005-12-19
申请人： Rene Jean Essiambre , Michael Rubsamen , Peter J. Winzer
发明人： Rene Jean Essiambre , Michael Rubsamen , Peter J. Winzer
IPC分类号： H04B10/06
CPC分类号： H04L25/03178 , H04B10/66
摘要： In an over-sampled maximum-likelihood sequence estimation (MLSE) receiver system, the optimal sample spacing is determined for a variety of conditions. In an illustrative implementation, the system includes an optical filter for tightly filtering an incoming optical data signal with an on-off-keying (OOK) non-return-to-zero (NRZ) format, followed by an optical-to-electrical converter, an electrical filter, a sampler, and a MLSE receiver. The sampler samples the filtered electrical data signal twice each bit period with unequal sample spacings. For wide optical filtering bandwidths, the optimal sample spacing occurs at less than 50% of a bit period. For narrow bandwidths, the optimal sample instances occur closer to the maximum eye opening.
摘要翻译：在过采样的最大似然序列估计（MLSE）接收机系统中，针对各种条件确定最佳采样间隔。在说明性实施方案中，该系统包括用于使用开关键（OOK）不归零（NRZ）格式紧密地滤波输入的光数据信号的光学滤波器，随后是光 - 电转换器，电气滤波器，采样器和MLSE接收器。采样器以不相等的样本间隔对滤波后的电数据信号采样两次，每个位周期。对于宽光学滤波带宽，最佳采样间隔发生在小于位周期的50％。对于窄带宽，最佳采样实例更接近最大眼睛开度。

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