Efficient Tm$^{3+}$ lasers in double tungstate channel waveguides


Dalfsen, K. van and Aravazhi, S. and Geskus, D. and Wörhoff, K. and Pollnau, M. (2011) Efficient Tm$^{3+}$ lasers in double tungstate channel waveguides. In: 16th International Conference on Luminescence & Optical Sperctroscopy of Condensed Matter, 26 June - 1 July 2011, Ann Arbor, MI, USA (pp. p. 65).

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Abstract:Gd3+(29.5%)-Lu3+(29.0%)-Tm3+(1.5%) co-doped KY(WO4)2 layers were grown onto KY(WO4)2 substrates by liquid-phase epitaxy and microstructured by Ar+-beam milling. Laser experiments with butt-coupled dielectric mirrors demonstrated maximum output powers of 149 mW and slope efficiencies of 31.5% when pumping at 794 nm. The lowest threshold was 7 mW.
Item Type:Conference or Workshop Item
Additional information:Paper ThII2
Electrical Engineering, Mathematics and Computer Science (EEMCS)
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