Mid-infrared emission in Tb^3+-doped selenide glass fiber

Modelling and Design of Lanthanide Ion-Doped Chalcogenide Fiber Lasers: Progress towards the Practical Realization of the First MIR Chalcogenide Fiber Laser

“…Chalcogenide glass fibers doped with lanthanide ions have been developed for at least two decades now and show consistently good photoluminescence properties within the MIR wavelength range up to 5.5 µm [5][6][7][8][9][10][11][12][13]. The observed photoluminescence lifetimes are near to the radiative lifetimes predicted by the Judd-Ofelt theory.…”

“…Due to multiphonon depopulation, other pumping wavelengths than the ones using the level 7 F 4 can also be applied, but at the cost of reduced efficiency. The results shown in [10] predict a slope efficiency of more than 40%, despite the very simple cavity design. .…”

Numerical modelling of Tb3+ doped selenide-chalcogenide multimode fibre based spontaneous emission sources

“…ion doped into the chalcogenide glass host may be used to calculate the level populations ( Fig. 1) (Sojka et al 2017). Thus in steady state, we obtain a set of three algebraic equations that describe the system (Sojka et al 2017 …”

“…In this contribution using a numerical model we study the luminescence properties of selenide-chalcogenide glass fibres doped with terbium (III) ions applied as wide spectrum spontaneous emission MIR light sources covering the wavelength range & S. Sujecki slawomir.sujecki@pwr.edu.pl stretching from 4 to 5.5 lm. Such a system was shown recently to offer a very simple pumping mechanism (Sojka et al 2017). For this purpose we fabricated selenide chalcogenide glass terbium doped multimode fibre and bulk samples and performed absorption and photoluminescence spectrum measurements.…”

“…From the experimental results using Judd-Ofelt theory and McCumber and Fuchtbauer-Ladenburg theory we extracted the absorption and emission cross section spectra for the relevant transitions and the photoluminescence lifetimes. The details of this procedure are provided in (Sojka et al 2017). Using an experimentally derived set of parameters we realised a lanthanide doped multimode fibre numerical model based on the rate equations' approach.…”