Wavelength dependence of polarisation mode dispersion in an elliptical core single-mode fibre was measured by a spatial technique based on the visibility maximum position measurement in the 0.67¿1.25 ¿m wavelength region. Normalised frequency dependence of the modal dispersion due to thermal-stress-induced birefringence was clearly obtained from the measurement and numerical calculation of normalised delay time difference using the point-matching principle.
Published in:
Electronics Letters
(Volume:18
,
Issue:
13
)
Date of Publication: June 24 1982