Monocrystalline $Yb^{3+}:(Gd,Lu)_2O_3$ channel waveguide laser at 976.8 nm


Kühn, Henning and Heinrich, Sebastian and Kahn, Andreas and Petermann, Klaus and Bradley, Jonathan D.B. and Wörhoff, Kerstin and Pollnau, Markus and Huber, Günter (2009) Monocrystalline $Yb^{3+}:(Gd,Lu)_2O_3$ channel waveguide laser at 976.8 nm. Optics letters, 34 (18). pp. 2718-2720. ISSN 0146-9592

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Abstract:We report on a $Yb^{3+}$-doped sesquioxide waveguide laser based on a lattice-matched $Yb^{3+}$(3%)$:(Gd,Lu)_2O_3$ film that has been epitaxially grown on $Y_2O_3$ using pulsed laser deposition. Rib-channel waveguides have been structured by reactive ion etching. Laser emission at 976.8 nm was observed under pumping with a $Ti^{3+}:Al_2O_3$ laser at 905 nm. A laser threshold of 17 mW and a slope efficiency of 6.7% have been achieved with respect to input power. For an incident pump power of 200 mW, a maximum output power of 12 mW could be realized.
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Copyright:© 2009 Optical Society of America
Electrical Engineering, Mathematics and Computer Science (EEMCS)
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