title: 100-kHz high-power femtosecond Ti:sapphire laser based on downchirped regenerative amplification.
abstract: We have generated femtosecond pulses with a peak power as high as 0.7 GW at the repetition rate of 100 kHz from a downchirped-pulse amplification (DPA) Ti:sapphire laser. For the high-energy amplification with high repetition rate, we employ a regenerative amplifier, acousto-optically switched and pumped by a Q-switched green laser. The DPA-based dispersion control is achieved up to the third-order term by use of a prism-grating stretcher and a glass compressor. We have obtained 28 muJ, 39 fs laser pulses with a compression efficiency of 95 %. Temporal and spatial characteristics of the laser pulses are investigated.
authors.forename: Kyung-Han
authors.initials: KH
authors.lastname: Hong
authors.forename: Sergei
authors.initials: S
authors.lastname: Kostritsa
authors.forename: Tae Jun
authors.initials: TJ
authors.lastname: Yu
authors.forename: Jae Hee
authors.initials: JH
authors.lastname: Sung
authors.forename: Il Woo
authors.initials: IW
authors.lastname: Choi
authors.forename: Young-Chul
authors.initials: YC
authors.lastname: Noh
authors.forename: Do-Kyeong
authors.initials: DK
authors.lastname: Ko
authors.forename: Jongmin
authors.initials: J
authors.lastname: Lee