Title :
Modeling of pair-induced quenching in erbium-doped silicate fibers
Author :
Delevaque, E. ; Georges, T. ; Monerie, M. ; Lamouler, P. ; Bayon, J.F.
Author_Institution :
CNET, Lannion, France
Abstract :
It is shown that in low-concentration erbium-doped silicate fibers (below 1000 p.p.m.), a residual absorption at 980 nm cannot be saturated. Usual models for upconversion of Er/sup 3+/ cannot match this behavior nor explain a fluorescence lifetime independent of pump power and erbium concentration. A phenomenon, the pair induced quenching (PIQ), that is compatible with the previous experimental results is exhibited. The influence of erbium and aluminum concentration on the ion pair proportion is shown.<>
Keywords :
aluminosilicate glasses; erbium; fibre lasers; fluorescence; germanate glasses; impurity and defect absorption spectra of inorganic solids; infrared spectra of inorganic solids; laser theory; luminescence of inorganic solids; optical glass; phosphosilicate glasses; radiation quenching; radiative lifetimes; 980 nm; EDFA; Er doped fibre amplifier; Er doped silicate fibres; Er/sup 3+/ upconversion; SiO/sub 2/-GeO/sub 2/-Al/sub 2/O/sub 3/:Er; SiO/sub 2/-GeO/sub 2/-P/sub 2/O/sub 5/:Er; fluorescence lifetime; ion pair proportion; low-concentration; modelling; pair-induced quenching; pump power; residual absorption; Absorption; Aluminum; Energy exchange; Erbium; Erbium-doped fiber amplifier; Fluorescence; Germanium; Laser excitation; Laser modes; Lifetime estimation;
Journal_Title :
Photonics Technology Letters, IEEE
