Propagation modes and avalanche spatial domains in Er-doped ZBLAN fiber

Philippe Goldner; Francois E. Auzel

doi:10.1117/12.323385

28 September 1998 Propagation modes and avalanche spatial domains in Er-doped ZBLAN fiber

Philippe Goldner, Francois E. Auzel

Proceedings Volume 3416, Infrared Glass Optical Fibers and Their Applications; (1998) https://doi.org/10.1117/12.323385
Event: Lasers and Materials in Industry and Opto-Contact Workshop, 1998, Quebec, Canada

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.

Citation Download Citation

Philippe Goldner and Francois E. Auzel "Propagation modes and avalanche spatial domains in Er-doped ZBLAN fiber", Proc. SPIE 3416, Infrared Glass Optical Fibers and Their Applications, (28 September 1998); https://doi.org/10.1117/12.323385

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