title: Yb-doped KY(WO4)2 planar waveguide laser.
abstract: High-quality monoclinic KY(WO4)2 optical waveguides were grown by liquid-phase epitaxy, and laser operation of an Yb-doped KY(WO4)2 waveguide was demonstrated for the first time to our knowledge. Continuous-wave laser emission near 1 microm was achieved with both surface and buried planar waveguides. An output power of 290 mW was obtained in the fundamental mode and the slope efficiency was above 80%.
authors.affiliation: Advanced Photonics Laboratory, Institute of Imaging and Applied Optics, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland. yaroslav.romanyuk@epfl.ch
authors.forename: Yaroslav E
authors.initials: YE
authors.lastname: Romanyuk
authors.forename: Camelia N
authors.initials: CN
authors.lastname: Borca
authors.forename: Markus
authors.initials: M
authors.lastname: Pollnau
authors.forename: Simon
authors.initials: S
authors.lastname: Rivier
authors.forename: Valentin
authors.initials: V
authors.lastname: Petrov
authors.forename: Uwe
authors.initials: U
authors.lastname: Griebner