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Optical Engineering

Up-conversion visible emission in rare-earth doped fluoride glass waveguides
Author(s): Brigitte Boulard; Belto Dieudonné; Youping Gao; Alessandro Chiasera; Maurizio Ferrari
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Paper Abstract

The paper presents the visible emissions through frequency up-conversion and energy transfer process in the waveguide rare-earth (RE) codoped with RE 3+ /Yb 3+ (RE=Er , Pr, Tm), as well as physical properties of fluoride glasses and their fabrication par physical vapor deposition. The RE doping is made by substituting LaF 3 in the base ZLAG glass composition (70%ZrF 4 -23.5%LaF 3 -0.5%AlF 3 -6%GaF 3 ). Under 980-nm excitation, the emissions in planar waveguides of 2 to 3 thickness are found similar to the ones observed in bulk; blue and red emissions for 0.5Pr 3+ /xYb 3+ codoping and blue emission for 0.75Tm 3+ /xYb 3+ codoping with x ranging from 1 to 5 mol%. The bulk glass doped with Er 3+ /Tm 3+ /Yb 3+ can generate simultaneously and with high efficiency red–green–blue emissions from single-wave pumping at 980 nm. These preliminary results show that Er 3+ /Tm 3+ /Yb 3+ triply doped ZLA waveguide is a potential material for compact white light sources.

Paper Details

Date Published: 13 February 2014
PDF: 7 pages
Opt. Eng. 53(7) 071814 doi: 10.1117/1.OE.53.7.071814
Published in: Optical Engineering Volume 53, Issue 7
Show Author Affiliations
Brigitte Boulard, Univ. du Maine (France)
Belto Dieudonné, Univ. du Maine (France)
Youping Gao, Univ. du Maine (France)
Alessandro Chiasera, Univ. degli Studi di Trento (Italy)
Maurizio Ferrari, Istituto di Fotonica e Nanotecnologie (Italy)

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