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Opt Lett. 2006 Jan 1;31(1):53-5.

Yb-doped KY(WO4)2 planar waveguide laser.

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  • 1Advanced Photonics Laboratory, Institute of Imaging and Applied Optics, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland.


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%.

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