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

Published online by Cambridge University Press:  31 January 2011

Jinjun Ren ,
Jianrong Qiu ,
Botao Wu  and
Danping Chen
Jinjun Ren*
Affiliation:
Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, People’s Republic of China; and Graduate School of the Chinese Academy of Sciences, Beijing 100080, People’s Republic of China
Jianrong Qiu
Affiliation:
State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027, People’s Republic of China
Botao Wu
Affiliation:
Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, People’s Republic of China; and Graduate School of the Chinese Academy of Sciences, Beijing 100080, People’s Republic of China
Danping Chen
Affiliation:
Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, People’s Republic of China
*
a)Address all correspondence to this author. e-mail: [email protected]
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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.

Keywords

BiLuminescenceOptical properties
Type
Articles
Information
Journal of Materials Research , Volume 22 , Issue 6 , June 2007 , pp. 1574 - 1578
Copyright
Copyright © Materials Research Society2007

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References

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