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Computation of the Brillouin spectrum in an optical fibre: Method and results

  • This paper treats the interaction between acoustic modes and light (Brillouin scattering) in a single mode optical fibre. Different observed spectra of the Brillouin backscattering in several fibres have been already reported. In order to have a clear idea of the process, we made a simulation to be able to `draw' the theoretical Brillouin spectrum of an optical fibre and to identify the origin ofThis paper treats the interaction between acoustic modes and light (Brillouin scattering) in a single mode optical fibre. Different observed spectra of the Brillouin backscattering in several fibres have been already reported. In order to have a clear idea of the process, we made a simulation to be able to `draw' the theoretical Brillouin spectrum of an optical fibre and to identify the origin of the observed backscattered lines. First, the model and the computation method used in our simulation are described. Second, the experimentally observed spectra of two real fibres are compared with their computed spectra. Real spectra and simulated spectra are in good agreement. Our work provides an interesting tool to investigate the changes in the Brillouin spectrum when the input parameters (characteristics of an optical fibre) vary. This should give useful indications to people working on systems which use Brillouin backscattering.show moreshow less

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Metadaten
Author:Sylvain Fischer, Patrick L. Meyrueis, Werner SchröderGND
Publisher:European Optical Society
Year of Publication:1996
Language:English
GND Keyword:Berechnung; Glasfaserkabel; Spektrum
Parent Title (English):Pure and Applied Optics: Journal of the European Optical Society
Volume:5
Issue:1
ISSN:1741-3567
First Page:55
Last Page:70
Document Type:Article (reviewed)
Open Access:Frei zugänglich
Institutes:Bibliografie
Release Date:2019/10/15
Licence (German):License LogoEs gilt das UrhG
DOI:https://doi.org/10.1088/0963-9659/5/1/007