Thévenaz, Lucde Coulon, V.von der Weid, J. P.2008-09-292008-09-292008-09-29198710.1364/OL.12.000619https://infoscience.epfl.ch/handle/20.500.14299/29844An interferometric technique was used to investigate the relative phase delay between polarization modes in birefringent single-mode fibers. Polarization-mode dispersion is directly deduced from the measurements of relative phase delay at different wavelengths. Relative group delays of 20 fsec can be measured in meter-length samples without the need for light-polarizing devicesbirefringencelight interferometrylight polarisationoptical fibrestext::journal::journal article::research article