OPTICAL-TRANSITION PROBABILITIES AND COMPOSITIONAL DEPENDENCE OF JUDD-OFELT PARAMETERS OF ER3+ IONS IN FLUOROINDATE GLASS

Fluoroindate glasses containing 1, 2, 3, and 4 mol% ErF3 were prepared in a dry box under an argon atmosphere. Absorption spectra of these g lasses at room temperature were obtained. The Judd-Ofelt parameters Om ega(lambda), (lambda = 2, 4, 6) for f-f transitions of Er3+ ions as we ll as transition probabilities, branching ratios, radiative lifetimes, and peak cross-sections for stimulated emission of each band were det ermined. The concentration effect on the intensities is analyzed. The optical properties of the fluoroindate glasses doped with Er3+ ions ar e compared with those of other glasses described in the literature.