APPARATUS AND PROCESS FOR DRAWING OPTICAL FIBER

PROBLEM TO BE SOLVED: To prevent quality deterioration or breaking of an optical fiber during its manufacture by suppressing vibration in an optical fiber preform attached to a drawing tower. SOLUTION: The apparatus comprises a drawing tower 1 for an optical fiber 5, a drawing furnace 3 which is mou...

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Bibliographic Details
Main Author ADACHI TORU
Format Patent
LanguageEnglish
Published 10.06.2004
Edition7
Subjects
CHEMISTRY
GLASS
MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
METALLURGY
MINERAL OR SLAG WOOL
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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Summary:PROBLEM TO BE SOLVED: To prevent quality deterioration or breaking of an optical fiber during its manufacture by suppressing vibration in an optical fiber preform attached to a drawing tower. SOLUTION: The apparatus comprises a drawing tower 1 for an optical fiber 5, a drawing furnace 3 which is mounted on the upper part of the drawing tower and performs heat-melting and spinning of an optical fiber preform 4, a damping device 2 mounted on the drawing tower, a dummy preform 8 of the optical fiber preform attached to the drawing tower, an accelerometer 35 which detects the vibration of the dummy preform 8, a sensor such as a displacement gauge 36 and a control unit (PLC) 37 which feeds back an output of the sensor. The apparatus simulates the vibration of the optical fiber preform 4 by vibrating the dummy preform 8 and actively suppresses the vibration of the optical fiber preform 4 by the damping device 2. COPYRIGHT: (C)2004,JPO
Bibliography:Application Number: JP20020325673