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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 13, Iss. 25 — Dec. 12, 2005
  • pp: 10040–10048

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

Tae-Jung Ahn, Yongmin Jung, Kyunghwan Oh, and Dug Young Kim  »View Author Affiliations

Optics Express, Vol. 13, Issue 25, pp. 10040-10048 (2005)

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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.

© 2005 Optical Society of America

OCIS Codes
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(260.2030) Physical optics : Dispersion

ToC Category:
Research Papers

Tae-Jung Ahn, Yongmin Jung, Kyunghwan Oh, and Dug Young Kim, "Optical frequency-domain chromatic dispersion measurement method for higher-order modes in an optical fiber," Opt. Express 13, 10040-10048 (2005)

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