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Lasers
Generation of parabolic laser pulses in short fibre amplifiers
I. A. Shchukareva, D. A. Korobkoa, M. Yu. Salganskiib, I. O. Zolotovskiia a Technological Research Institute of Ulyanovsk State University
b Institute of Chemistry of High-Purity Substances RAS, Nizhnii Novgorod
Abstract:
The laser pulse evolution in a normal-dispersion fibre amplifier is studied. The cases of ideal spectrum-homogeneous and transform-limited amplification are considered. It is shown that the envelope transformation of the input pulse to a parabolic form is possible not only for spectrally-flat amplification, but also for transform-limited one. In the latter case, an important parameter is the optimal amplifier length. The results demonstrate that, in the case of a sufficiently wide amplification spectrum, it is always possible to find the optimal amplifier length, after passing through which the output pulse envelope is close to a parabola.
Keywords:
fibre amplifiers, parabolic pulses, normal dispersion.
Received: 08.04.2019
Citation:
I. A. Shchukarev, D. A. Korobko, M. Yu. Salganskii, I. O. Zolotovskii, “Generation of parabolic laser pulses in short fibre amplifiers”, Kvantovaya Elektronika, 49:10 (2019), 925–930 [Quantum Electron., 49:10 (2019), 925–930]
Linking options:
https://www.mathnet.ru/eng/qe17125 https://www.mathnet.ru/eng/qe/v49/i10/p925
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