Evaluation of energy transfer coefficients in Tm-doped fibers for fiber lasers

Jakub Cajzl; Pavel Peterka; Pavel Honzátko; Ondřej Podrazký; Michal Kamrádek; Jan Aubrecht; Jana Proboštová; Ivan Kašík

doi:10.1117/12.2296342

1 December 2017 Evaluation of energy transfer coefficients in Tm-doped fibers for fiber lasers

Jakub Cajzl, Pavel Peterka, Pavel Honzátko, Ondřej Podrazký, Michal Kamrádek, Jan Aubrecht, Jana Proboštová, Ivan Kašík

Proceedings Volume 10603, Photonics, Devices, and Systems VII; 106030G (2017) https://doi.org/10.1117/12.2296342
Event: Photonics Prague 2017, 2017, Prague, Czech Republic

Abstract

In this work we report on the determination of the cross-relaxation energy-transfer coefficients from the measurements of the fluorescence lifetimes of the ³F₄ and ³H₄ energy levels of Tm³⁺ ions in the experimentally prepared optical fibers. Optical fiber preforms were prepared by solution-doping of Tm³⁺ ions with either Al³⁺ ions or dispersed alumina nanoparticles. Optical fibers were characterized by means of Tm, Al and Ge concentrations, refractive index profiles, optical spectral attenuations, luminescence spectra and fluorescence lifetimes. Highly aluminium-codoped optical fibers exhibited fluorescence lifetimes of up to 756 μs.

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Jakub Cajzl, Pavel Peterka, Pavel Honzátko, Ondřej Podrazký, Michal Kamrádek, Jan Aubrecht, Jana Proboštová, and Ivan Kašík "Evaluation of energy transfer coefficients in Tm-doped fibers for fiber lasers", Proc. SPIE 10603, Photonics, Devices, and Systems VII, 106030G (1 December 2017); https://doi.org/10.1117/12.2296342

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