13 February 2014 Up-conversion visible emission in rare-earth doped fluoride glass waveguides
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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.
© 2014 Society of Photo-Optical Instrumentation Engineers (SPIE)
Brigitte Boulard, Belto Dieudonné, Youping Gao, Alessandro Chiasera, 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 . Submission:
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