title: Yb3+:CaYAlO4-based chirped pulse regenerative amplifier.
abstract: The results of an experimental study of the chirped pulse amplification regime are reported for the Yb:CaYAlO4crystal with different polarization states in the gain media for the first time, to the best of our knowledge. A maximum output power of 4.2 W with 310 fs pulse duration was obtained for σ-polarization at 200 kHz repetition rate seeded by a 85 fs Yb:KYW oscillator. 215 fs pulses with an output power of 3 W and 190 fs with 2.3 W output power were demonstrated for π-polarized light in the crystal. Gain narrowing effects for different polarization states in the crystal are discussed.
authors.forename: Alexander
authors.initials: A
authors.lastname: Rudenkov
authors.forename: Viktor
authors.initials: V
authors.lastname: Kisel
authors.forename: Anatol
authors.initials: A
authors.lastname: Yasukevich
authors.forename: Karine
authors.initials: K
authors.lastname: Hovhannesyan
authors.forename: Ashot
authors.initials: A
authors.lastname: Petrosyan
authors.forename: Nikolai
authors.initials: N
authors.lastname: Kuleshov