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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 21, Iss. 2 — Feb. 1, 2004
  • pp: 313–317

1.47-µm emission and multiphonon relaxation of Tm3+ ions in potassium bismuth gallate glasses

Shi Qing Man, Sun Fat Wong, Edwin Yue Bun Pun, and Po Shuen Chung  »View Author Affiliations


JOSA B, Vol. 21, Issue 2, pp. 313-317 (2004)
http://dx.doi.org/10.1364/JOSAB.21.000313


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Abstract

We propose and demonstrate potassium bismuth gallate (KBG) glasses as suitable hosts for the rare-earth ion Tm3+ (thulium) operating at the 1.47-µm wavelength. The optical properties of Tm3+-doped KBG glasses were investigated. The bandwidth of the  3H4 3F4 transition is ∼120 nm and is higher than that of Tm3+-doped, tellurite-based glasses. The measured fluorescence lifetime is 0.15 ms at room temperature, and the quantum efficiency is 88%. Multiphonon relaxation rates for various transitions were evaluated and compared with other glass hosts. The energy transfer in Tm3+Ho3+-codoped KBG glasses was also investigated, and these results indicate that Tm3+-doped KBG glasses are promising candidates for efficient broadband optical amplifiers operating in the 1.47-µm wavelength range.

© 2004 Optical Society of America

OCIS Codes
(160.2750) Materials : Glass and other amorphous materials
(160.5690) Materials : Rare-earth-doped materials
(250.4480) Optoelectronics : Optical amplifiers
(250.5230) Optoelectronics : Photoluminescence
(300.6250) Spectroscopy : Spectroscopy, condensed matter
(300.6280) Spectroscopy : Spectroscopy, fluorescence and luminescence

Citation
Shi Qing Man, Sun Fat Wong, Edwin Yue Bun Pun, and Po Shuen Chung, "1.47-µm emission and multiphonon relaxation of Tm3+ ions in potassium bismuth gallate glasses," J. Opt. Soc. Am. B 21, 313-317 (2004)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-21-2-313

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