Abstract

Germanosilicate glass shows inhomogeneous saturation behavior,¹ whereas aluminogermanosilicate glass shows homogeneous behavior.² Zemon et al.³ have published a study of nonresonant fluorescence line narrowing (FLN), but their spectra show little evidence of significant spectral narrowing by site selection. Spectral hole-burning spectroscopy has been applied by Desurvire et al.⁴ on Er³⁺ in aluminosilicate fiber. They extracted an inhomogeneous linewidth Γ_in of 12.5 nm and a homogeneous linewidth Γ_h of 115 nm.

© 1991 Optical Society of America