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Article Dans Une Revue Journal of Physics D: Applied Physics Année : 2010

Spectroscopy and optical characterization of thulium doped TZN glasses

Résumé

This paper reports spectroscopic properties of the 3 H 4 and 3 F 4 Tm 3+ levels in TZN glass host with a concentration range from 0.82 to 22 10 20 cm -3. Precise refractive index measurements are performed on five different wavelengths by the prism coupling method. Judd – Ofelt intensity parameters have been determined in order to obtain transition rate, branching ratio, and radiative lifetime. Spectroscopy measurements showed the most promising concentration for 1.8 µm short cavity laser emission at 6.84 10 20 cm -3 Tm 3+ with a 24% quantum efficiency 2 and upper limit concentration of 11 10 20 cm -3 Tm 3+. Energy transfer microparameters and critical ion distance are determined for both emission levels in the framework of diffusion – limited regime and dipole – dipole interaction.
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Dates et versions

hal-00569566 , version 1 (25-02-2011)

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H Gebavi, D Milanese, R Balda, S Chaussedent, M Ferrari, et al.. Spectroscopy and optical characterization of thulium doped TZN glasses. Journal of Physics D: Applied Physics, 2010, 43 (13), pp.135104. ⟨10.1088/0022-3727/43/13/135104⟩. ⟨hal-00569566⟩

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