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Proceedings Paper

Estimation of energy transfer parameters in thulium- and ytterbium-doped silica fibers
Author(s): Pavel Peterka; Wilfried Blanc; Bernard Dussardier; Gérard Monnom; David Simpson; Greg Baxter
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Paper Abstract

Silica-based thulium-doped fibers sensitized by ytterbium are being developed for applications in fiber amplifiers and lasers at various wavelengths (around 800 nm, 1470 nm and 2 µm). Several studies have been performed to design and optimize thulium- and ytterbium-doped fiber (TYDF) amplifiers and lasers at the above mentioned wavelengths. Although some papers dealing with modeling of such a system exist, the parameters used in the simulations, like energy transfer coefficients, have not been experimentally determined to date. In this paper we present an estimation of the energy transfer coefficients by comparison of the measured emission of three TYDF samples with numerical simulations of the respective emission using a spectrally and spatially resolved model of TYDF. We found that the energy transfer coefficients are higher than those reported in Tm/Yb-doped fluoride based crystals. This fact together with the possibility of increasing the energy transfer efficiency, by improvement of excited level lifetime of thulium by high alumina codoping, makes thulium/ytterbium co-doped silica fibers promising for applications in fiber lasers and amplifiers.

Paper Details

Date Published: 18 November 2008
PDF: 6 pages
Proc. SPIE 7138, Photonics, Devices, and Systems IV, 71381K (18 November 2008); doi: 10.1117/12.818042
Show Author Affiliations
Pavel Peterka, Institute of Photonics and Electronics (Czech Republic)
Wilfried Blanc, Lab. de Physique de la Matière Condensée, CNRS, Univ. de Nice Sophia Antipolis (France)
Bernard Dussardier, Lab. de Physique de la Matière Condensée, CNRS, Univ. de Nice Sophia Antipolis (France)
Gérard Monnom, Lab. de Physique de la Matière Condensée, CNRS, Univ. de Nice Sophia Antipolis (France)
David Simpson, Victoria Univ. (Australia)
Greg Baxter, Victoria Univ. (Australia)

Published in SPIE Proceedings Vol. 7138:
Photonics, Devices, and Systems IV
Pavel Tománek; Dagmar Senderáková; Miroslav Hrabovský, Editor(s)

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