title: Efficient diode-pumped Tm:KYW 1.9-μm microchip laser with 1 W cw output power.
abstract: We report on a diode-pumped Tm:KYW microchip laser generating 1 W continuous-wave output power. The laser operates at a wavelength of 1.94 μm in the fundamental TEM(00) mode with 71% slope efficiency relative to the absorbed pump radiation and 59% slope efficiency relative to the incident pump radiation. The optical-to-optical laser efficiency is 43%.
authors.forename: Maxim
authors.initials: M
authors.lastname: Gaponenko
authors.forename: Nikolay
authors.initials: N
authors.lastname: Kuleshov
authors.forename: Thomas
authors.initials: T
authors.lastname: Südmeyer