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Journal of Fluorescence

, 18:131 | Cite as

Spectroscopic Properties of Er3+/Yb3+-codoped PbO–Bi2O3–Ga2O3–GeO2 Glasses

  • G. F. Yang
  • D. M. Shi
  • Q. Y. Zhang
  • Z. H. Jiang
Original Paper

Abstract

We investigate the spectroscopic properties of the 1.5-μm emission from the 4I13/24I15/2 transition of Er3+ ions in PbO–Bi2O3–Ga2O3–GeO2 glasses for applications in broadband fiber amplifiers. The measured emission peak locates at 1,532 nm with a full width at half-maximum of ∼45 nm. The glasses exhibit a large stimulated emission cross-section of 0.89 × 10−20 cm2 and a large \( {\text{FWHM}} \times {\text{ $ \sigma $ }}_{{\text{e}}} ^{{{\text{peak}}}} \) product of 40.0. Infrared-to-green upconversion occurs simultaneously upon excitation of the 1.5-μm emission with a commercially available 980 nm laser diode. The green-upconversion intensity has a quadratic dependence on incident pump laser power, indicating a two-photon process. Energy transfer processes and nonradiative phonon-assisted decays could account for the population of the 2H11/2 of Er3+. The results indicate the possibility towards the development of lead–bismuth–gallate–germanate based glasses as photonics devices.

Keywords

Heavy-metal oxide glasses Spectroscopic properties Er3+ Upconversion 

Notes

Acknowledgements

The authors would like to thank Mr. Z M Feng for his technical assistance. This work is jointly supported by NSFC (50602017, 50472053), GSTG (Guangzhou, 2006J1-C0491), and NFSG (Guangdong, 05300221).

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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  • G. F. Yang
    • 1
  • D. M. Shi
    • 1
  • Q. Y. Zhang
    • 1
  • Z. H. Jiang
    • 1
  1. 1.Key Lab of Specially Function Materials of Ministry of Education, and Institute of Optical Communication MaterialsSouth China University of TechnologyGuangzhouPeople’s Republic of China

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