A novel automatic PMD compensation scheme based on DSP in optical fiber communication systems

An universal digital signal processing (DSP) application for adaptive polarization mode compensation (PMD) compensation was demonstrated in optical transmission systems. In high-speed optical fiber communication systems, it is important to compensate the PMD effectively due to the time-varying and statistical properties of PMD. We designed a low power-consume DSP-based integrated control system to complete first-order PMD and second-order PMD compensation. The searching process and the tracking process for automatic PMD compensation could be completed in less than 10 ms and 1 ms by using DPSO algorithm.