Effect of Bi2O3 on the spectroscopic properties of erbium-doped bismuth silicate glasses

摘要

The spectroscopic properties of erbium-doped silicon dioxide, bismuth oxide, and sodium oxide glasses are investigated based on Judd-Ofelt analysis for absorption spectra, bandwidth analysis for emission spectra, and lifetime measurements of the I-4(13/2) level of Er3+. The effects of bismuth oxide on these three optical parameters are discussed in terms of the local basic nature of the glass, of variations in ligand fields about Er3+ sites, and of the phonon energy and the refractive index of the glass host, respectively. The data obtained suggest that bismuth oxide does not have a promising composition for use with a broadband erbium-doped fiber amplifier. (C) 2003 Optical Society of America. [References: 35]