Reliable determination of optical fiber nonlinearity using dispersion simulations and improved power measurements

Antti Lamminpää, T. Hieta, J. Envall, E. Ikonen

Research output: Contribution to journalArticleScientificpeer-review

8 Citations (Scopus)


We have improved the accuracy of the continuous-wave self-phase modulation method for measuring the nonlinearity of optical fibers.
Evaluation of the measurement uncertainty shows that the most significant source of uncertainty is the measurement of fiber-optic power. However, chromatic dispersion can also have a significant effect on the apparent results if it is not taken properly into account.
We demonstrate means to achieve an expanded uncertainty of 2% (coverage factor k=2) for the measurement of the nonlinear coefficient n2 /Aeff.
Also, the metrological aspects related to the determination of the nonlinear coefficient and the measurement uncertainty are discussed
Original languageEnglish
Pages (from-to)527-532
JournalJournal of Lightwave Technology
Issue number2
Publication statusPublished - 2007
MoE publication typeA1 Journal article-refereed



  • Optical fiber dispersion
  • optical Kerr effect
  • optical fiber measurements
  • photodetectors

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