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Proceedings Paper

Novel rare earth doped tellurite glasses for fiber lasers in the 2-micron wavelength region
Author(s): Daniel Milanese; Monica Vota; Guihua Liao; Monica Ferraris; Nicola Coluccelli; Stefano Taccheo
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Paper Abstract

In this paper Tm-doped tellurite glasses (75TeO2-20ZnO-5 Na2O, mol%) were prepared and characterized, and codoping with Yb was investigated in order to improve pump efficiency and wavelength emission range. Emission spectra and lifetime measurements were obtained by pumping Tm-doped tellurite glasses at 800 nm and Yb-Tm co-doped tellurite glasses at 980 nm, thus exploiting the Yb-Tm energy transfer mechanism. Highly Yb-doped Tm-tellurite glasses were investigated (Yb2O3 concentrations up to 5 wt%) and an increase in 3F4 lifetime with Yb2O3 concentrations higher than 3% was observed. This showed that high amounts of Yb do not affect lifetime of the metastable state, thus allowing investigation of lasers in this range of doping concentrations.

Paper Details

Date Published: 20 February 2007
PDF: 8 pages
Proc. SPIE 6469, Optical Components and Materials IV, 646918 (20 February 2007); doi: 10.1117/12.702237
Show Author Affiliations
Daniel Milanese, Politecnico di Torino (Italy)
Monica Vota, Politecnico di Torino (Italy)
Guihua Liao, Politecnico di Torino (Italy)
Monica Ferraris, Politecnico di Torino (Italy)
Nicola Coluccelli, Politecnico di Milano (Italy)
Stefano Taccheo, Politecnico di Milano (Italy)


Published in SPIE Proceedings Vol. 6469:
Optical Components and Materials IV
Shibin Jiang; Michel J. F. Digonnet, Editor(s)

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