Modelling the bandwidth behaviour of fibre Bragg gratings excited by low-frequency acoustic waves

Modelling the bandwidth behaviour of fibre Bragg gratings excited by low-frequency acoustic waves

A model is presented to explain the dynamically induced bandwidth increase of fibre Bragg grating spectra, when those are excited by acoustic waves at low frequencies. The approach considers the existence of both flexural and longitudinal waves propagating simultaneously in the fibre.

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Bibliographische Detailangaben
Hauptverfasser: de Almeida Prado Pohl, Alexandre, da Silva, Ricardo Ezequiel, Franco, Marcos Antonio Ruggieri, de Tarso Neves, Paulo, Bartelt, Hartmut
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Acoustic waves
acousto-optic effect
Bandwidth
Fiber gratings
fibre Bragg gratings
Modulation
Optical fibers
Strain
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Beschreibung
Zusammenfassung:A model is presented to explain the dynamically induced bandwidth increase of fibre Bragg grating spectra, when those are excited by acoustic waves at low frequencies. The approach considers the existence of both flexural and longitudinal waves propagating simultaneously in the fibre.
ISSN:2162-7339
DOI:10.1109/ICTON.2013.6603004