Polarization mode dispersion (PMD) compensation is one of the challenges to deployment of ultra-high-bit-rate systems. PMD impact on system performance and outage probability is explained. Then both optical and electrical PMD compensation techniques are reviewed and important design considerations are discussed. Issues regarding PMD-induced distortion detection, feedback and control algorithms in the presence of local minima, and interaction between PMD and other degrading effects [such as chromatic dispersion, polarization-dependent loss (PDL), and fiber nonlinearities] are discussed.
PMD compensation is one of the requirements for deployment of 40 Gbit/s systems. In this paper, we discuss several important considerations in the design of PMD compensators. Issues regarding PMD-induced distortion detection, feedback and control algorithms in the presence of local minima, cost/performance tradeoffs, and interaction between PMD and other degrading effects (such as chromatic dispersion, PDL, and fiber nonlinearities) are among the topics that will be presented.
PMD is one of the critical hurdles in deploying high capacity fiber optical networks (OC-192 per channel and above). Due to its stochastic and time-varying nature, PMD compensation requires adaptive schemes, using feedback or feed-forward techniques. In this paper we will discuss practical issues and limitations of PMD compensation, as well as recent developments on architecture and feedback schemes.
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