Channel waveguide laser at 1µm in Yb-indiffused LiNbO3

Jones, J.K., de Sandro, J.P., Hempstead, M., Shepherd, D.P., Large, A.C., Tropper, A.C. and Wilkinson, J.S. (1995) Channel waveguide laser at 1µm in Yb-indiffused LiNbO3 Optics Letters, 20, (13), pp. 1477-1479. (doi:10.1364/OL.20.001477).


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We report laser action in a Ti-diffused LiNbO3 waveguide doped with trivalent Yb ions by thermal indiffusion. Lasing was observed at 1008, 1030, and 1060 nm with thresholds as low as 15-mW launched pump power. We reduced photorefractivity, which initially permitted only intermittent lasing, by annealing the sample in wet O2. The annealed sample lased continuously in a cavity formed by high-reflectivity mirrors; however, with a 7% output coupler the output power exhibited instabilities. The greatest value of the output power observed under these conditions was consistent with a slope efficiency of ~16% with respect to absorbed power.

Item Type: Article
Digital Object Identifier (DOI): doi:10.1364/OL.20.001477
ISSNs: 0146-9592 (print)
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ePrint ID: 78152
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Date Deposited: 11 Mar 2010
Last Modified: 18 Apr 2017 20:24
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