An optical cable 10 includes a core tube 120 containing optical fibers 101 that extend along the longitudinal axis 105--105 of the cable, and a plastic jacket 160 that encloses the core tube. The cable has a high tensile stiffness which is provided by load sharing between a pair of rigid...http://www.google.es/patents/US5838864?utm_source=gb-gplus-sharePatente US5838864 - Optical cable having an improved strength system
