Measurement of the nonlinear coefficient of optical fibers by femtosecond pulses and spectral interferometry

Carlo Liberale*, Luca Tartara, Ilaria Cristiani, Marco Cartasegna, Vittorio Degiorgio

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Accurate measurements of the nonlinear coefficient γ of optical-communication fibers are performed by using 110-fs pulses. The nonlinear phase shift induced by self-phase modulation over a propagation length shorter than 1 m is detected by the spectral-interferometry technique. The value of γ is obtained by comparing the measured frequency-dependent nonlinear phase with the numerical solution of the nonlinear propagation equation.

Original languageEnglish (US)
Pages (from-to)1123-1125
Number of pages3
JournalIEEE Photonics Technology Letters
Volume15
Issue number8
DOIs
StatePublished - Aug 2003
Externally publishedYes

Keywords

  • Nonlinear wave propagation
  • Optical fibers
  • Self-phase modulation (SPM)
  • Spectral interferometry (SI)

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

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