Michelle Grüne,1 Bernd Ahrens,1,2 Peter W. Nolte,3 Stefan Schweizer1,2
1South Westphalia University of Applied Sciences (Germany) 2Branch Lab. of Fraunhofer Institute for Microstructure of Materials and Systems IMWS 3Branch Lab. of Fraunhofer Institute for Microstructure of Materials and Systems IMWS (Germany)
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The luminescence properties of Dy3+ and Tb3+ single- as well as Dy3+ / Tb3+ double-doped barium borate glasses are investigated for their potential as light-converter. In double-doped barium borate glass an energy transfer from Dy3+ to Tb3+ is observed, i.e., an intense green luminescence from the doped Tb3+ ions results upon excitation at Dy3+-related absorption bands. Ray-tracing simulations allow for an evaluation of singleand double-doped light guides in different length. Here, the luminous flux and luminance values at the rough output face of a luminescent light guide are determined.
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Michelle Grüne, Bernd Ahrens, Peter W. Nolte, Stefan Schweizer, "Double-doped borate glass light guide with high luminance," Proc. SPIE 12142, Fiber Lasers and Glass Photonics: Materials through Applications III, 1214209 (25 May 2022); https://doi.org/10.1117/12.2621250