Direct observation of cooperative upconversion mechanisms in erbium-doped fibre amplifiers

Abstract

By examining upconversion fluorescence in Er³⁺-doped fibres, ion-pair upconversion and uniform upconversion have been directly and separately observed. An upper limit for the ion-pair lifetime has been determined.

19th European Conference on Optical Communication (ECOC) Montreux Switzerland 12-16 Sep (1993) Vol.2 pp.73-76

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