WATER-RESISTANT OPTICAL CABLE AND MANUFACTURING METHOD

摘要

A method for manufacturing an optical cable (5, 105) for communication comprising at least one micromodule (1), said micromodule (1) being blocked with respect to the propagation of water, is described. The method of the invention comprises the steps of: - providing at least one optical fiber (2); - embedding the at least one optical fiber (2) in a pseudoplastic filling compound (4) having a viscosity comprised between 3 Pa^.s and 30 Pa^.s, preferably between 7 Pa^.s and 25 Pa^.s, at a shear rate of 10 s^-1 and at a temperature of 100°C, and a cross-over lower than 30 Hz, preferably comprised between 5 Hz and 25 Hz, at a temperature of 100°C; - extruding a retaining element (3) made of a thermoplastic polymeric composition around the at least one optical fiber (2) so embedded in the filling compound (4) to obtain a micromodule (1).