title: Continuous-wave and Q-switched operation of a resonantly pumped Ho³⁺:KY₃F₁₀ laser.
abstract: We report continuous-wave and repetitively Q-switched operation of a resonantly pumped Ho3+:KY3F10 laser at room temperature. End pumped by a Tm3+-doped silica fiber laser operating at 1938 nm, a maximum laser power of 7.8 W was obtained at a wavelength of ∼2041  nm for 21 W of absorbed pump power, corresponding to a slope efficiency of 60.7% with respect to absorbed power. At a repetition rate of 10 kHz up to 0.78 mJ, energy per pulse was demonstrated with pulse widths of 100 ns. The beam propagation factor (M2) was measured to be <1.26 at the maximum output power.
authors.forename: Martin
authors.initials: M
authors.lastname: Schellhorn
authors.forename: Daniela
authors.initials: D
authors.lastname: Parisi
authors.forename: Marc
authors.initials: M
authors.lastname: Eichhorn
authors.forename: Mauro
authors.initials: M
authors.lastname: Tonelli
mesh_terms: D053844:Lasers, Solid-State; D055620:Optical Phenomena; D013696:Temperature