Room-temperature operation of an Yb-doped Gd3Ga5O12 buried channel waveguide laser at 1.025 μm wavelength
- 15 April 1996
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 68 (16) , 2177-2179
- https://doi.org/10.1063/1.116004
Abstract
An epitaxially grown ytterbium‐doped gadoliniumgalliumgarnet (Yb:GGG) buried channel waveguide laser is prepared on an yttrium substituted GGG substrate (Y:GGG). The effective light guiding structure is obtained as a result of the difference of refractive indices of Yb:GGG and Y:GGG. The Yb:GGG waveguide exhibits single‐mode 1.025 μm lasing operation at room temperature. The incident threshold and slope efficiency of the 5‐mm‐long waveguide laser when pumped at 0.941 μm are 80 mW and 13.4%, respectively.Keywords
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