PMD effect on distributed chromatic dispersion measurements in DSF fibers

We report PMD effect on the distributed chromatic dispersion map measurement based on phase-mismatched four-wave mixing. The experimental results of distributed chromatic dispersion maps for a low-PMD dispersion-shifted fiber are described with spatial resolution of 250 m and dispersion accuracy less than ±0.02 ps/nm.km. For high-PMD DSF fibers, the chromatic dispersion map may be difficult to determine if the fiber has a long polarization-coupling length; however, it is still possible to be measured for a low polarization-coupling length fiber. Finally, the use of this method to determine distributed nonlinear coefficient will also be discussed.