title: All-solid-state 5-kHz 0.2-TW Ti:sapphire laser system.
abstract: We have developed an all-solid-state 5-kHz Ti:sapphire laser system, which produces 22-fs, 0.2-TW pulses. An average power of 22.2 W is the highest ever obtained in ultrashort laser sources. The serious thermal lensing due to high power pumping in a small area of the Ti:sapphire crystal is controlled successfully by a stable quasi-cavity with two concave mirrors.
authors.forename: Y
authors.initials: Y
authors.lastname: Nabekawa
authors.forename: T
authors.initials: T
authors.lastname: Togashi
authors.forename: T
authors.initials: T
authors.lastname: Sekikawa
authors.forename: S
authors.initials: S
authors.lastname: Watanabe
authors.forename: S
authors.initials: S
authors.lastname: Konno
authors.forename: T
authors.initials: T
authors.lastname: Kojima
authors.forename: S
authors.initials: S
authors.lastname: Fujikawa
authors.forename: K
authors.initials: K
authors.lastname: Yasui