Title

Tm3+ and Yb3+ co-doped tellurite glasses for short cavity optical fiber lasers: Fabrication and optical characterization

Authors

Authors

D. Milanese; H. Gebavi; J. Lousteau; M. Ferraris; A. Schulzgen; L. Li; N. Peyghambarian; S. Taccheo;F. Auzel

Comments

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Abbreviated Journal Title

J. Non-Cryst. Solids

Keywords

Tellurite glass; Tm; Yb; Rare earth; EMISSIONS; Materials Science, Ceramics; Materials Science, Multidisciplinary

Abstract

In this paper Tm-doped tellurite glasses (75TeO(2)-20ZnO-5 Na2O, mol%) were studied and sensitization with Yb3+ as co-dopant was carried out in order to assess its influence on the emission properties and improve pump efficiency and wavelength emission range. Emission spectra and lifetime measurements were obtained by pumping either at 785 nm or 980 nm, thus exploiting the Yb-Tm energy transfer mechanism. Doping levels of Yb from below 1 to up 5 mol% were investigated in order to evaluate the effectiveness of energy transfer process and glasses containing an overall content of 9 mol% rare earth ions were proved to be successfully fabricated. All glasses were fully characterized from a material and spectroscopic point of view. Tellurite glasses with 4 and 1 mol% of Tm3+ and Yb3+ ions respectively were found to show a good compromise between emission efficiency and lifetime decay values. A quenching concentration of Yb3+ ions up to 14 mol% was also defined for this type of glass system. (C) 2010 Elsevier B.V. All rights reserved.

Journal Title

Journal of Non-Crystalline Solids

Volume

356

Issue/Number

44-49

Publication Date

1-1-2010

Document Type

Article; Proceedings Paper

Language

English

First Page

2378

Last Page

2383

WOS Identifier

WOS:000285282100019

ISSN

0022-3093

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