Impact of Third-Order Fiber Nonlinearities on Optical WDM Communication Systems

三阶光纤非线性对光 WDM 通信系统的影响

• 批准号: 9417595
• 负责人: Leonid Kazovsky
• 金额: $ 26.75万
• 依托单位: Stanford University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-12-01 至 1999-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9417595&HistoricalAwards=false
• 关键词: Impact; Third; Order; Fiber; Nonlinearities

9417595 Kazovsky Wavelength-division multiplexing (WDM) is rapidly evolving as a key technology for future optical networks ranging from local area networks (LANs) to wide-area networks (WANs). Third-order fiber nonlinearities (self-phase modulation (SPM), cross-phase modulation (XPM) and four-wave mixing (FWM) set limit on the capacity of WDM networks. We propose to investigate, both theoretically and experimentally, the effect of XPM and FWM produced on one wavelength channel by the others, by investigating the statistics of amplitude and frequency noise produced by these effects. We will quantitatively evaluate penalties imposed by XPM and FWM on measure on system performance, such as bit error rate (BER) and eye closure. We will investigate techniques for minimizing the impact of XPM and FWM by varying optical power, number of wavelengths, channel spacing, modulation frequency and format, dispersion, coding, polarization, and receiver type. Through this investigation, we will develop quantitative models of the impact of XPM and FWM on WDM systems, techniques to minimize this impact, and techniques to achieve optimum system performance consistent with the unavoidable presence of nonlinear effects in such networks. ***

9417595 Kazovsky 波分复用 (WDM) 正在迅速发展成为未来光网络（从局域网 (LAN) 到广域网 (WAN)）的关键技术。 三阶光纤非线性（自相位调制（SPM）、交叉相位调制（XPM）和四波混频（FWM）对WDM网络的容量设置了限制。我们建议从理论上和实验上研究XPM和FWM对其他波长信道产生的影响，通过研究这些效应产生的幅度和频率噪声的统计数据。我们将定量评估这些影响 XPM 和 FWM 对系统性能测量施加的惩罚，例如误码率 (BER) 和眼图闭合。 我们将研究通过改变光功率、波长数、通道间隔、调制频率和格式、色散、编码、偏振和接收器类型来最小化 XPM 和 FWM 影响的技术。 通过这项调查，我们将开发 XPM 和 FWM 对 WDM 系统、最小化这种影响的技术以及实现与此类网络中不可避免的非线性效应一致的最佳系统性能的技术。 ***