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Proceedings Paper

Propagation modes and avalanche spatial domains in Er-doped ZBLAN fiber
Author(s): Philippe Goldner; Francois E. Auzel
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Paper Abstract

The upconverted fluorescence dots which appear under photon- avalanche excitation in a Er:ZBLAN fiber are quantitatively analyzed with respect to the pump mode structure into the fiber. By computing the modes propagation constants, we show that the main luminescent structures periods correspond to beatings between low order pump modes. The observed luminescent dots result from these interferences combined with the excitation intensity threshold of avalanche upconversion. An unusual dynamical effect in which the same final incident power leads to two different long-lived population states is also reported. This effect is mainly attributed to the long time required to build up a strong absorption near the avalanche threshold.

Paper Details

Date Published: 28 September 1998
PDF: 8 pages
Proc. SPIE 3416, Infrared Glass Optical Fibers and Their Applications, (28 September 1998); doi: 10.1117/12.323385
Show Author Affiliations
Philippe Goldner, France Telecom and Lab. de Physico-Chimie des Materiaux (France)
Francois E. Auzel, France Telecom and Lab. de Physico-Chimie des Materiaux (France)


Published in SPIE Proceedings Vol. 3416:
Infrared Glass Optical Fibers and Their Applications
Mohammed Saad, Editor(s)

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