Signal distortion due to chromatic dispersion. Spectrum broadening. Difference in group velocity. Wavelength. Group velocity. Δλ. 1. Time. 1. 0. Original signal. There are 3 dispersion types in the optical fibers, in general: 1- Material Dispersion . Chromatic dispersion includes the material & waveguide dispersions. CHROMATIC DISPERSION (OPTICS). Knowledgebase at Introduction. In optics, dispersion is the phenomenon in which the phase velocity.

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Click here to see what’s new. 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.

Optics Letters

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.

Express 13 20 Express 13 11 Express 14 20 Express 23 2 Ohand D. Jungand J. Wiskand J. Reedand P. Appathuraiand P. Turand Y. Nakamuraand H.

OSA | Chromatic dispersion characterization by direct instantaneous frequency measurement

Levyand M. Westbrookand R.

Culshawand R. Blakeand S. Horiguchiand Y. Ohand Y. Leeand D. Moreauand P.

Optics Express

OkoshiOptical fibersAcademic press, inc. SeniorOptical fiber communications: Principles and practicePrentice Hall Europe Citing articles from OSA journals and other participating publishers are listed here. Alert me when chromativ article is cited. Click here to see a list of articles chromstic cite this paper. Measured relative group delays for the excited modes of a FMF with respect to the fundamental mode chromqtic an SMF in three different wavelengths of, and nm.

Login or Create Account. Express 13 September 6, Revised Manuscript: November 25, Manuscript Accepted: December 2, Published: Abstract 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.


High-resolution differential mode delay measurement for a multimode optical fiber using a modified optical frequency domain reflectometer T. New optical frequency domain pp mode delay measurement method for a multimode optical fiber T. Determination of the differential mode delay of a multimode fiber using Fourier-domain intermodal interference analysis J. Experimental set-up for the optical frequency domain chromatic dispersion measurements of a multimode fiber.

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