Theoretical modelling of S-band thulium-doped silica fibre amplifiers |
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| Authors: | Peterka P Faure B Blanc W Karásek M Dussardier B |
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| Institution: | 1. Laboratoire de Physique de la Matière Condensée CNRS, Université de Nice – Sophia Antipolis, Parc Valrose, 06108, Nice, France
2. Institute of Radio Engineering and Electronics AS CR, 182 51, Praha 8, Czech Republic
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| Abstract: | A comprehensive numerical model of a thulium-doped silica-based fibre amplifiers is presented. The model is spectrally and spatially resolved and is general in terms of pumping scheme used. The application of the model for predicting the S-band amplifier performance and for optimization of amplifier parameters is shown. For optimized Tm-doped fibre with 3H4 level lifetime of 45 μs, which is the maximum value in the Tm-doped silica fibres prepared by the authors, above 20 dB of gain with 2000 mW pump power at the 1050 nm pump band can be expected according to the simulations. |
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