C. Francia et al., PMD 2ND-ORDER EFFECTS ON PULSE-PROPAGATION IN SINGLE-MODE OPTICAL FIBERS, IEEE photonics technology letters, 10(12), 1998, pp. 1739-1741
The time-space varying birefringence in single-mode optical fibers cau
ses the polarization mode dispersion (PMD) to be a serious problem in
high bit-rate transmissions, The PMD first- and second-order statistic
s are well known in the literature, but second-order PMD-induced pulse
distortions have still to be clarified for sequences of pulses of arb
itrary shape. We give, for the first time, the exact PMD time impulse
response, up to second order, We show, both numerically and experiment
ally, that the effect of the rotation of the principal states of polar
ization (PSP) is to generate power overshoots on the ''1'' and ''0'' b
it sequences.