Feedback control of the first-order PMD adaptive compensation system for the 10Gbit/s fiber optical communication system

摘要

We completed a 5-degree of freedom PMD compensator with a novel feedback control algorithm. The tracking algorithm, which successfully solves the problem of easily been trapped into local optima is adopted in the tracking course with no visible worsening of the feedback signal in the compensation process. Long time testing shows good performance of our compensator for fast tracking and compensation.