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DEHYDRATION-SINTERING FURNACE, A MANUFACTURING METHOD OF AN OPTICAL FIBER PREFORM UTILIZING THE FURNACE AND AN OPTICAL FIBER PREFORM MANUFACTURED BY THE METHOD
DEHYDRATION-SINTERING FURNACE, A MANUFACTURING METHOD OF AN OPTICAL FIBER PREFORM UTILIZING THE FURNACE AND AN OPTICAL FIBER PREFORM MANUFACTURED BY THE METHOD
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机译:脱水烧结炉,利用该炉的光纤预制棒的制造方法以及该方法制造的光纤预制棒
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摘要
A dehydration-sintering furnace for dehydrating and/or sintering an optical fiber preform for use in production of an optical fiber includes a muffle for accommodating the optical fiber preform, a heater for heating the muffle, and a pressure fluctuation absorbing apparatus connected to the muffle. Since the pressure fluctuation absorbing apparatus is thermally insulated from a room temperature atmosphere or heated, vapor produced in a dehydration-sintering process is prevented from condensing (liquefying) in a pressure fluctuation absorbing apparatus, thereby preventing reduced dehydration effectiveness in the muffle and reduced quality of the optical fiber preform.
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