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Report No.

Optical-parametric chirped-pulse amplification using a positive dispersive material for pulse stretching and compression

Yamakawa, Koichi; Akahane, Yutaka; Ogawa, Kanade; Aoyama, Makoto

We have proposed and demonstrated a novel optical-parametric chirped-pulse amplification scheme in which an even order dispersion of an idler pulse is compensated by passing through an identical positive dispersive material used for temporal stretching a signal pulse. By compressing the idler pulses having a negatively chirp in this manner, high power sub-100 fs pulses were successfully obtained with only a transparent glass block used for the stretcher and compressor. A feasible design of real world femtosecond laser systems employing this scheme is also discussed.



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