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Ultrabroad infrared luminescences from Bi-doped alkaline earth metal germanate glasses

  • Jinjun Ren (a1), Jianrong Qiu (a2), Botao Wu (a1) and Danping Chen (a3)

Abstract

We report on ultrabroad infrared (IR) luminescences covering the 1000–1700-nm wavelength region, from Bi-doped 75GeO2–20RO–5Al2O3–1Bi2O3(R = Sr, Ca, and Mg) glasses. The full width at half-maximum of the IR luminescences excited at 980 nm increases (315 → 440 → 510 nm) with the change of alkaline earth metal (Mg2+→ Ca2+→ Sr2+). The fluorescence lifetime of the glass samples is 1725, 157, and 264 μs when R is Sr, Ca, and Mg, respectively. These materials may be promising candidates for broad-band fiber amplifiers and tunable laser resources.

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a)Address all correspondence to this author. e-mail: renjiujunsiom@163.com

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Ultrabroad infrared luminescences from Bi-doped alkaline earth metal germanate glasses

  • Jinjun Ren (a1), Jianrong Qiu (a2), Botao Wu (a1) and Danping Chen (a3)

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