Journal
OPTICS LETTERS
Volume 43, Issue 18, Pages 4341-4344Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.43.004341
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- French Agence Nationale de la Recherche (ANR) through the LabEx EMC3 project FAST-MIR
- European Community Funds FEDER
- Normandie Region
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The first holmium fluoride waveguide laser, to the best of our knowledge, is reported using a 25-mu m-thick Gd3+-ion-modified 4.5 at. % Tm3+, 0.5 at. % Ho3+-codoped LiYF4 active layer grown by liquid phase epitaxy on (001)oriented LiYF4 substrate. Pumped by a Ti:sapphire laser at 797.2 nm, the planar waveguide laser generates 81 mW of continuous-wave (CW) output at similar to 2051 nm with a slope efficiency of 24%. Power scaling up to 186 mW at 2051 nm and 2065 nm in quasi-CW regime is demonstrated. The parameters of the Tm3+. Ho3+ energy transfer are determined. Tm,Ho:LiYF4/LiYF4 epitaxies are promising for waveguide lasers and amplifiers at above 2 mu m. (c) 2018 Optical Society of America
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