Proceedings PaperGroup velocity effects in ultrafast optical systems
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Group-velocity dispersion (GVD) effects, caused by dispersion of optical materials, attracted a great deal of interest in the past decade. Their importance stems from the role they play in generañon and propagation of ultra-short optical pulses. Those effects determine performance characteristics ofultra$ast optical systems by setting limits on the shortest optical pulses that can propagate without significant distortion. We plan to discuss broadening of ultra-short pulses and methods of its compensation in two systems. First we consider mode-locked femtosecond lasers and amplifiers, and then optical fibres.