Abstract
The periodic variation of femtosecond pulse characteristics within a mode-locked Ti: sapphire laser is investigated. By measurement of the output pulse characteristics at the dispersive and the nondispersive ends of a femtosecond Kerr-lens mode-locked laser cavity, it has been demonstrated that both the laser bandwidth and the pulse duration are functions of position within the laser cavity. A qualitative argument is also presented that predicts near-bandwidth-limited pulses at the cavity extremes, and this prediction is confirmed by experiment.
© 1993 Optical Society of America
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