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).
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Received: 25 October 2000 / Revised version: 2 January 2001 / Published online: 27 April 2001
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Jaque, D., Luo, Z. & García Solé, J. Quantum efficiency of Nd-doped lasers measured by pump-induced crystal heating: application to the Nd3+:Gd2(MoO4)3 crystal . Appl Phys B 72, 811–814 (2001). https://doi.org/10.1007/s003400100563
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DOI: https://doi.org/10.1007/s003400100563