OPTICAL FIBER COOLING APPARATUS AND METHOD USED IN OPTICAL FIBER DRAWING PROCESS

摘要

Disclosed is an optical fiber cooling apparatus and method used in an optical fiber drawing process, which measures an outer diameter of a coated optical fiber indicating its coating condition and controls a feeding amount and a recovery amount of a coolant depending on the outer diameter, thereby ensuring uniform coating of the optical fiber, and which can reduce a usage amount of the coolant used to cool an optical fiber by increasing a recovery amount of the coolant even though the coolant was fed in small quantities, and of which configuration is simple, resulting in reduced facility cost.