A method for the cooling of an optical fiber during the pulling

摘要

Method of cooling of an optical fiber (7) in the course of the drawing, by placing in contact with at least one cooling fluid in at least one cooling zone (10, 11, 13), characterized in that it carries out a rapid cooling (10), that is - to - say a slow cooling less than a cooling to ambient air, in order to pass from an initial temperature of the fiber (7) at a temperature of the end of the rapid cooling of the fiber (7), followed by a slow cooling (11), that is - to - say a slower cooling as a cooling to ambient air to pass from a temperature of the start of the slow cooling of the fiber (7) at a temperature of the end of the cooling circuit 1 (1) of said fiber (7).