Ye, C.C., Morkel, P.R., Taylor, E.R. and Payne, D.N.
Direct observation of cooperative upconversion mechanisms in erbium-doped fibre amplifiers
In Proceedings of 19th European Conference on Optical Communication.
Institute of Electrical and Electronics Engineers., .
Full text not available from this repository.
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
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