Abstract
Polarization mode dispersion (PMD) is consid- ered to be the next critical hurdle in > 10- Gbit/s/channel transmission systems. Since PMD is a stochastic, dynamically varying process, com- pensation of the channel degradation induced by PMD is extremely challenging. Several automatic PMD compensation technologies have been re- ported.' "•' Most of these methods use one section of differential group delay (DGD) as the main first-order compensator element. Consequently, the system performance is limited by higher-or- der PMD and achieved PMD tolerance is around 30 ps for 10-Gbit/s systems.4
© 2001 Optical Society of America
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