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Proceedings Paper

Quest of athermal solid state laser: case of Yb:CaGdAlO4
Author(s): Johan Petit; Philippe Goldner; Bruno Viana; Julien Didierjean; François Balembois; Frédéric Druon; Patrick Georges
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Paper Abstract

Emission of Yb: CALGO is constituted of a broad band lying between 990 nm and 1060 nm with relatively high emission cross section values. Since Yb3+ ions occupy a single crystallographic site, the disorder is related to the surrounding cations presenting different size and cationic charges. Laser experiments were performed on a 2%Yb:CALGO sample with anti-reflection coating using Ti:sapphire pumping at 979 nm. A laser oscillation was obtained in sigma polarization from 1050 to 987.6 nm using non-collinear pumping. Consequently, a quantum defect value as low as 0.8% was obtained. This is one of the smallest values ever reported in the literature. In addition the thermal conductivity values are high (k=6.3 and 6.9 W.m-1.K-1 for the two orientations).

Paper Details

Date Published: 17 April 2006
PDF: 8 pages
Proc. SPIE 6190, Solid State Lasers and Amplifiers II, 619003 (17 April 2006); doi: 10.1117/12.662036
Show Author Affiliations
Johan Petit, Chimie de la Matière Condensée de Paris, CNRS (France)
Philippe Goldner, Chimie de la Matière Condensée de Paris, CNRS (France)
Bruno Viana, Chimie de la Matière Condensée de Paris, CNRS (France)
Julien Didierjean, Lab. Charles Fabry de l’Institut d’Optique, CNRS, Univ. Paris-Sud (France)
François Balembois, Lab. Charles Fabry de l’Institut d’Optique, CNRS, Univ. Paris-Sud (France)
Frédéric Druon, Lab. Charles Fabry de l’Institut d’Optique, CNRS, Univ. Paris-Sud (France)
Patrick Georges, Lab. Charles Fabry de l’Institut d’Optique, CNRS, Univ. Paris-Sud (France)


Published in SPIE Proceedings Vol. 6190:
Solid State Lasers and Amplifiers II
Alphan Sennaroglu, Editor(s)

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