Novel rare earth doped tellurite glasses for fiber lasers in the 2-micron wavelength region

Daniel Milanese; Monica Vota; Guihua Liao; Monica Ferraris; Nicola Coluccelli; Stefano Taccheo

doi:10.1117/12.702237

20 February 2007 Novel rare earth doped tellurite glasses for fiber lasers in the 2-micron wavelength region

Daniel Milanese, Monica Vota, Guihua Liao, Monica Ferraris, Nicola Coluccelli, Stefano Taccheo

Proceedings Volume 6469, Optical Components and Materials IV; 646918 (2007) https://doi.org/10.1117/12.702237
Event: Integrated Optoelectronic Devices 2007, 2007, San Jose, California, United States

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.

Citation Download Citation

Daniel Milanese, Monica Vota, Guihua Liao, Monica Ferraris, Nicola Coluccelli, and Stefano Taccheo "Novel rare earth doped tellurite glasses for fiber lasers in the 2-micron wavelength region", Proc. SPIE 6469, Optical Components and Materials IV, 646918 (20 February 2007); https://doi.org/10.1117/12.702237

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