Mid-infrared luminescence and energy transfer of Dy3+/Tm3+ doped fluorophosphate glass |
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| Authors: | Ying Tian Rongrong Xu Yanyan Guo Ming Li Lili Hu Junjie Zhang |
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| Institution: | 1. Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, PR China;2. Graduate School of Chinese Academy of Sciences, Beijing 100039, PR China |
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| Abstract: | This work reports the observation of emissions at 2.9 μm, 1.8 μm and 1.47 μm from Dy3+/Tm3+ codoped fluorophosphate glass upon excitation of a conventional 800 nm laser diode. Judd–Ofelt intensity parameters and radiative properties of Dy3+ ions in present glasses were calculated using the Judd–Ofelt theory. The mechanism and microparameters of energy transfer processes were investigated based on photoluminescence performance and lifetime measurements. The Dy3+/Tm3+ codoped fluorophosphate glass possessing advantageous spectroscopic characteristics as well as excellent thermal stability is a promising candidate for an efficient 2.9 μm laser. |
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