INFLUENCE OF POLARIZATION MODE DISPERSION ON THE TRANSMISSION OF PARALLEL AND ORTHOGONALLY POLARIZED SOLITONS AT 40 GB S/

The influence of polarisation mode dispersion (PMD) on the transmissio n of parallel and orthogonally polarised soliton sequences at 40 Gb/s is investigated by numerical simulation. Maximum transmission distance s at 1 dB eye-penalty are calculated, for different values of the chro matic dispersion parameter D and the polarisation dispersion parameter D,. The use of orthogonally polarised solitons has the advantage of r educed interaction, but PMD causes additional problems clue to a timin g jitter between the two polarisation components. For parallel polaris ed solitons, it is found that the effects of PMD are negligible when D (p)less than or equal to 0.1 ps/root km, while for D(p)greater than or equal to 20.6 ps/root km the transmission distances are severely limi ted. Orthogonally polarised solitons are always beneficial, for D-p le ss than or equal to 0.4 ps/root km. The use of sliding-frequency filte rs results in significant increase of maximum transmission distances. (C) 1998 Elsevier Science B.V. All rights reserved.