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Optics Letters

Optics Letters


  • Editor: Anthony J. Campillo
  • Vol. 32, Iss. 9 — May. 1, 2007
  • pp: 1029–1031

Optical low-coherence reflectometry for complete chromatic dispersion characterization of few-mode fibers

Philippe Hamel, Yves Jaouën, Renaud Gabet, and Siddharth Ramachandran  »View Author Affiliations

Optics Letters, Vol. 32, Issue 9, pp. 1029-1031 (2007)

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A phase-sensitive optical low-coherence reflectometry (OLCR) technique is demonstrated to simultaneously measure the absolute chromatic dispersion values of each guided LP mode of a few-mode fiber. We show that the OLCR technique requires only short samples of fiber ( < 1 m ) and has no need for high-ratio mode converters to reach an accurate wavelength-dependent group delay evolution of every mode. As an example we present for the first time to our knowledge a direct and complete analysis of few-mode fibers with high, low, positive, and negative modal dispersion values, leading to chromatic dispersion parameters in good agreement with theoretical predictions.

© 2007 Optical Society of America

OCIS Codes
(060.2300) Fiber optics and optical communications : Fiber measurements
(060.2400) Fiber optics and optical communications : Fiber properties
(120.3180) Instrumentation, measurement, and metrology : Interferometry

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: October 20, 2006
Revised Manuscript: January 26, 2007
Manuscript Accepted: January 26, 2007
Published: April 3, 2007

Philippe Hamel, Yves Jaouën, Renaud Gabet, and Siddharth Ramachandran, "Optical low-coherence reflectometry for complete chromatic dispersion characterization of few-mode fibers," Opt. Lett. 32, 1029-1031 (2007)

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