title: Difference-frequency generation of ultrashort pulses in the mid-IR using Yb-fiber pump systems and AgGaSe(2).
abstract: We employ AgGaSe(2) for difference-frequency generation between signal and idler of synchronously-pumped picosecond / femtosecond OPOs at 80 / 53 MHz. Continuous tuning in the picosecond regime is achieved from 5 to 18 µm with average power of 140 mW at 6 µm. In the femtosecond regime the tunability extends from 5 to 17 µm with average power of 69 mW at 6 µm. Maximum single pulse energies of >1 nJ in both cases represent the highest values at such high repetition rates.
authors.forename: Marcus
authors.initials: M
authors.lastname: Beutler
authors.forename: Ingo
authors.initials: I
authors.lastname: Rimke
authors.forename: Edlef
authors.initials: E
authors.lastname: Büttner
authors.forename: Paolo
authors.initials: P
authors.lastname: Farinello
authors.forename: Antonio
authors.initials: A
authors.lastname: Agnesi
authors.forename: Valeriy
authors.initials: V
authors.lastname: Badikov
authors.forename: Dmitrii
authors.initials: D
authors.lastname: Badikov
authors.forename: Valentin
authors.initials: V
authors.lastname: Petrov