Up-conversion visible emission in rare-earth doped fluoride glass waveguides

Brigitte Boulard; Belto Dieudonné; Youping Gao; Alessandro Chiasera; Maurizio Ferrari

doi:10.1117/1.OE.53.7.071814

13 February 2014 Up-conversion visible emission in rare-earth doped fluoride glass waveguides

Brigitte Boulard, Belto Dieudonné, Youping Gao, Alessandro Chiasera, Maurizio Ferrari

Author Affiliations +

Optical Engineering, Vol. 53, Issue 7, 071814 (February 2014). https://doi.org/10.1117/1.OE.53.7.071814

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%ZrF₄-23.5%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.

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Brigitte Boulard, Belto Dieudonné, Youping Gao, Alessandro Chiasera, and Maurizio Ferrari "Up-conversion visible emission in rare-earth doped fluoride glass waveguides," Optical Engineering 53(7), 071814 (13 February 2014). https://doi.org/10.1117/1.OE.53.7.071814

Published: 13 February 2014

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