Thévenaz, LucPellaux, J. P.2008-09-292008-09-292008-09-29198710.1049/el:19870753https://infoscience.epfl.ch/handle/20.500.14299/29845optical dispersionoptical fibresoptical testingoptical variables measurementLEDsdispersion measurementsdownshiftinggroup delay measurementslow-frequency rangemodulation frequency-shift techniqueoptical fibresoptical testingphase-shift measurementssingle-mode fibresModulation frequency-shift technique for dispersion measurements in optical fibres using LEDstext::journal::journal article::research article