Birefringence and polarization fluctuations as a result of optical fibre bending during scanning of a KAT-7 riser cable. - H. Kourouma; E. K. Rotich; R. R. G. Gamatham; Andrew W. R. Leitch; Timothy B. Gibbon; R. Siebrits; R. Julie; F. Kapp (AFRICON, 2013)