Lasers : Generation of parabolic laser pulses in short fibre amplifiers. (21st October 2019)

• Record Type: Journal Article
• Authors: Shchukarev, I A; Korobko, D A; Salganskii, M Yu; Zolotovskii, I O
• Is Part Of: Quantum electronics. Volume 49:Number 10(2019)
• Page Start: 925
• Page End: 930
• Publication Date: 2019-10-21
• Subjects: Quantum electronics -- Periodicals; 537.5
• DOI: 10.1070/QEL17037
• Languages: English
• ISSNs: 1063-7818

Abstract

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.