1.47-µm emission and multiphonon relaxation of Tm3+ ions in potassium bismuth gallate glasses
JOSA B, Vol. 21, Issue 2, pp. 313-317 (2004)
http://dx.doi.org/10.1364/JOSAB.21.000313
Acrobat PDF (142 KB)
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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