Abstract
We present analytical expressions for the transfer function of periodically
dispersion compensated optical links within intensity-modulated optical transmission
systems. The accuracy of the proposed expressions is confirmed through the
simulation based on the split-step Fourier method. With the transfer function,
we thoroughly investigate the effects of precompensation and nonzero residual
chromatic dispersion (CD) on the performance of periodically dispersion compensated
optical links. We also introduce a fast and simple technique to determine
the optimum link condition, such as the optimum amount of precompensation
and residual CD, and show that there is an optimum monitoring frequency in
the CD monitoring technique based on the sub-carrier tone.
© 2008 IEEE
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