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Summary form only given. The accumulation of fiber-induced dispersion in high-speed singlechannel or wavelength-diviijion multiplexing (WDM) systems can be compensated by either dispersion-compensating fiber (DCF)' or a linearly chirped fiber Bragg grating (FBG).' However, the accumulated dispersion for a given channel may significantlyvary in time for: (i) dynamically reconfigurable optical networks in which a given channel may originate locally or far away, and (ii) transmission systems having changing operating conditions. If dispersion changes, then dispersion compensation techniques must be flexible in order to track the accumulated dispersion as well as dynamically tune the compensator for new channel conditions.