title: Cryogenically-cooled Yb:YGAG ceramic mode-locked laser.
abstract: This work reports on a liquid-nitrogen-cooled, SESAM mode-locked Yb:YGAG (Yb:Y(3)Ga(2)Al(3)O(12)) ceramic laser. The Yb:YGAG has a similar structure to Yb:YAG, but its emission spectrum at low temperature remains much broader, which is suitable for ultrashort pulse generation and amplification. A stable pulse train with 119-MHz repetition rate was obtained at a wavelength of 1026 nm. The measured pulse duration is 2.4 ps, which is more than four times shorter than that achieved with a cryogenically-cooled Yb:YAG. Furthermore, laser performance of the Yb:YGAG ceramics in continuous-wave operation and wavelength tunability at 80 K was investigated.
authors.forename: J
authors.initials: J
authors.lastname: Mužík
authors.forename: M
authors.initials: M
authors.lastname: Jelínek
authors.forename: V
authors.initials: V
authors.lastname: Jambunathan
authors.forename: T
authors.initials: T
authors.lastname: Miura
authors.forename: M
authors.initials: M
authors.lastname: Smrž
authors.forename: A
authors.initials: A
authors.lastname: Endo
authors.forename: T
authors.initials: T
authors.lastname: Mocek
authors.forename: V
authors.initials: V
authors.lastname: Kubeček