Abstract
Chromatic dispersion is one of the main transmission impairments in optical systems with high bit rates,
because the dispersion limit scales with the square of the data rate. Optical delay-line filters can be used to
compensate dispersion and dispersion slope. They can be designed as feedforward finite-impulse response filters or
as all-pass infinite-impulse response filters. Due to the time-variant property of the dispersion, those filters
have to be adaptive, which requires fast and reliable calculation of the filter coefficients. In this paper, a new
approach to calculate filter coefficients by applying analytical methods is presented. Design examples are given,
and the filter performance is discussed.
© 2007 IEEE
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