论文信息 - Measurements of Third-Order Dispersion Effects for Generation of High-Repetition-Rate, Sub-Three-Cycle Transform-Limited Pulses from a Glass Fiber

Measurements of Third-Order Dispersion Effects for Generation of High-Repetition-Rate, Sub-Three-Cycle Transform-Limited Pulses from a Glass Fiber

An active chirp compensator consisting of a prism pair and a spatial-phase-modulating pulse shaper enables us to accurately measure the third-order dispersion (TOD) dependence of the interferometric autocorrelation trace while keeping the optimum group-delay dispersion constant. As a result, it is shown that even a small change in TOD (+60 fs3 and -100 fs3) greatly affects the temporal pulse profile in the sub-8-fs region, and 92-fs pulses at a 75-MHz repetition rate from a laser-oscillator glass-fiber system is transform-limitedly compressed to 7.1 fs.

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