US Patent 7796895 Method and system for dynamic dispersion compensation

A dynamic dispersion compensation system and method are provided. The method dynamically compensates for dispersion in an optical signal by recovering a first clock and a second clock from a first polarization component and a second polarization component of the optical signal respectively, determining a delay time between the first clock and the second clock, determining the dispersion based on the delay time and dynamically compensating for the determined dispersion. The system comprises a polarization beam splitter, a clock recoverer, a dispersion determiner and a tunable dispersion compensation module and is operable to dynamically compensate for the dispersion in an optical signal.