Optical frequency-domain chromatic dispersion measurement method for higher-order modes in an optical fiber

Tae Jung Ahn, Yongmin Jung, Kyunghwan Oh, Dug Young Kim

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23 Citations (Scopus)


We propose a new chromatic dispersion measurement method for the higher-order modes of an optical fiber using optical frequency modulated continuous-wave (FMCW) interferometry. An optical fiber which supports few excited modes was prepared for our experiments. Three different guiding modes of the fiber were identified by using far-field spatial beam profile measurements and confirmed with numerical mode analysis. By using the principle of a conventional FMWC interferometry with a tunable external cavity laser, we have demonstrated that the chromatic dispersion of a few-mode optical fiber can be obtained directly and quantitatively as well as qualitatively. We have also compared our measurement results with those of conventional modulation phase-shift method.

Original languageEnglish
Pages (from-to)10040-10048
Number of pages9
JournalOptics Express
Issue number25
Publication statusPublished - 2005 Dec 12


All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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