Quantum efficiency of Nd-doped lasers measured by pump-induced crystal heating: application to the Nd3+:Gd2(MoO4)3 crystal |
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| Authors: | D Jaque ZD Luo J García Solé |
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| Institution: | (1) Departamento de Física de Materiales, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco Universidad, 28049 Madrid, Spain, ES;(2) Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou (Fujian), 350002, P.R. China, CN |
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| Abstract: | In this paper we show how the quantum efficiency of Nd3+-doped laser crystals can be measured by means of a very simple method. This method is based on a multiwavelength study of
pump-induced crystal heating, and its major advantage is the simplicity of the required experimental set-up. It has been used
to determine the quantum efficiency of the main infrared laser channel (4
F
3/2?4
I
11/2) of the Nd3+:Gd2(MoO4)3 non-linear laser crystal. The value obtained for the quantum efficiency (φ=0.97) is in good agreement with that obtained
from the Judd–Ofelt formalism (φ=0.95).
Received: 25 October 2000 / Revised version: 2 January 2001 / Published online: 27 April 2001 |
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| Keywords: | PACS: 78 20 e 42 55 Rz 42 70 Mp |
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