A theoretical and experimental study of light polarization modulation
in single-mode anisotropic optical fibres is presented. The problem of
increasing polarization modulation efficiency in slightly and strongl
y anisotropic fibres is considered. The requirements to be met by the
optical configuration for efficient polarization modulation with both
slightly and strongly anisotropic fibres are discussed. The polarizati
on modulation signal is found to be immune to external effects on the
fibre under compensated birefringence. An experimental polarization mo
dulation-based 'fibredyne' video transmission data highway is presente
d.