Enhancement of Luminescence Properties of Er³⁺/Yb³⁺:P₂O₅ + BaO + La₂O₃ Glasses for Photonic Applications

Abstract

The Yb³⁺/Er³⁺ ions of doubly doped phosphate glasses (PBaLaErYb) were fabricated through the method of melt and rapid quenching which are characterized using different spectroscopic techniques that include optical absorption, photoluminescence and fluorescence decay analyses. Near-infrared de-excitation spectra were measured in the 1.4–1.7 µm region under the 980 nm laser diode excitation and characteristic luminescence peak was observed at 1.53 µm that belongs to ⁴I_13/2→ ⁴I_15/2 (Er³⁺ ion) electronic level. All these results has been discussed and reviewed with variety of already investigated Yb³⁺/Er³⁺-doped oxide glasses to explore the potential applications for the development of optical devices. These results suggest that the investigated glasses can also be considered for waveguide laser source in optical and fiber amplifier applications near 1.53 µm.

Keywords:

• Yb³⁺/Er³⁺-co-doped glasses
• phosphate glasses
• full-width at half maxima
• McCumber theory

Additional information

Funding

One of the authors, C.K. Jayasankar is grateful to UGC, New Delhi, for awarding UGC-BSR Faculty Fellowship (No.F.18-1/2011 (BSR)) and DAE-BRNS, Mumbai for sanctioning major Research Project (No.2009/34/36/BRNS/3174). Also, J. Kaewkhao would like to thank National Research Council of Thailand (NRCT) and Thailand Science Research and Innovation (TSRI) for partially supporting this research.