Applying a pair-correlation function of erbium ions that is known from x-ray absorption fine structure spectroscopy, we develop a new statistical model of migration-assisted upconversion in erbium-doped glasses. The results of modeling show that short-range coordination order of erbium ions contributes to the upconversion rate for both low and high population inversion. In addition, we report the methods of suppression of the short-range order of erbium ions in multicomponent glasses.
© 2005 Optical Society of America
(060.2270) Fiber optics and optical communications : Fiber characterization
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(060.2410) Fiber optics and optical communications : Fibers, erbium
(160.5690) Materials : Rare-earth-doped materials
Sergey Sergeyev, Sergei Popov, and Ari T. Friberg, "Influence of the short-range coordination order of erbium ions on excitation migration and upconversion in multicomponent glasses," Opt. Lett. 30, 1258-1260 (2005)