We derive a recursion relation for the frequency autocorrelation function of the polarization dispersion vector for polarization mode dispersion emulators with rotators. The autocorrelation function has a nonzero background for an emulator with a fixed number of sections. This background diminishes slowly as the number of sections grows. Randomizing the section lengths removes the autocorrelation periodicity exhibited by an emulator with equal sections, but it does not remove the finite background. (C) 2002 Optical Society of America.
机构:
Optical Networks Research Laboratory, Ericsson Telecom AB, SE-126 25 Stockholm, SwedenOptical Networks Research Laboratory, Ericsson Telecom AB, SE-126 25 Stockholm, Sweden