OPTICAL FIBER DRAWING APPARATUS AND OPTICAL FIBER PREFORM FEED RATE CONTROL METHOD

摘要

PROBLEM TO BE SOLVED: To provide an optical fiber drawing apparatus for obtaining an optical fiber having a uniform outside diameter by stabilizing the drawing speed of the optical fiber and to provide an optical fiber preform feed rate control method. SOLUTION: In the optical fiber drawing apparatus and the optical fiber preform feed rate control method, a capstan speed is fixed depending on the outside diameter of the optical fiber and when the fixed capstan speed deviates from the objective range, the feed rate of the preform is controlled to allow the drawing speed of the optical fiber to be in the objective range. COPYRIGHT: (C)2004,JPO