Impact of initial pulse shape on the nonlinear spectral compression in optical fibre

Sonia Boscolo, Frederic Chaussard, Esben Andresen, Hervé Rigneault, Christophe Finot

Research output: Contribution to journalArticlepeer-review


We theoretically study the effects of the temporal intensity profile of the initial pulse on the nonlinear propagation spectral compression process arising from nonlinear propagation in an optical fibre. Various linearly chirped input pulse profiles are considered, and their dynamics is explained with the aid of time-frequency representations. While initially parabolic-shaped pulses show enhanced spectral
compression compared to Gaussian pulses, no significant spectral narrowing occurs when initially super-Gaussian pulses are used. Triangular pulses lead to a spectral interference phenomenon similar to the Fresnel bi-prism experiment.
Original languageEnglish
Pages (from-to)301-309
Number of pages9
JournalOptics and Laser Technology
Early online date28 Sept 2017
Publication statusPublished - 1 Feb 2018

Bibliographical note

© 2017, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International

Funding: Conseil Regional de Bourgogne (Pari Photcom) and the Agence Nationale de la Recherche (Labex ACTION program ANR-11-LABX-01-01).


  • Nonlinear spectral compression; Nonlinear fiber optics; Pulse shaping
  • Nonlinear fiber optics
  • Pulse shaping


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