Experiment Of Polarization Mode Dispersion Compensation Research Articles

An experiment of PMD compensation in 40-Gb/s PSBT transmission system

An adaptive polarization mode dispersion (PMD) compensation experiment is reported in a 40-Gb/s phase shaped binary transmission (PSBT) communication system, with the use of a new digital signal processor (DSP)-based optical PMD compensator. PMD tolerance is found to be enhanced by 8 ps after PMD compensation with 1-dB optical signal-to-noise ratio (OSNR) penalty. Under the condition of fast change of states of polarization up to 85 rad/s in the fiber link, the performance of our PMD compensator undergoes the bit error ratio (BER) test for as long as 10 h.

Adaptive PMD compensation experiment in 40 Gb/s CSRZ system

In 40 Gb/s systems with low polarization-mode dispersion (PMD) fibers, first-order PMD is the dominate factor with quite small value. An adaptive PMD compensator consisting of an electrical polarization controller (PC), a section of polarization maintaining fiber (PMF), a degree of polarization (DOP) detector and a feedback control module is employed in 40 Gb/s NSFCNet. This compensator has a simple structure and high speed, which can compensate up to 20 ps first-order PMD adaptively and the average searching time is 2 ms.

PMD Penalty Monitor for Automatic PMD Compensation of 40-Gb/s RZ Data

A dual-window spectral analysis polarization-mode dispersion (PMD) penalty monitor of novel design for 40-Gb/s return-to-zero signals is presented. Its good performance was verified in a PMD compensation experiment using an electrooptical Ti : LiNbO/sub 3/ distributed compensator.