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AssigneeSamsung Electronics Co., Ltd.
InventorsYoung-Sik Yoon, Mun-Hyun Do
Estimating the term…
A method for dehydrating and consolidating a porous optical fiber preform in a heating apparatus is provided. The apparatus includes a muffle in which the porous optical fiber preform is placed and a plurality of multi-stage heaters attached to an outer circumference of the muffle in a longitudinal direction of the preform. The preform is placed in the muffle such that the multi-stage heaters surround a total length of the preform. The preform is heated and dehydrated in a state in which a temperature of the multi-stage heaters reaches a dehydrating temperature of the preform. A temperature of one heater selected from the heaters is raised to a consolidating temperature of the preform. The dehydrated preform is moved and is passed through a high temperature zone formed by the selected heater in the muffle. The dehydrated preform is consolidated.
A method for dehydrating and consolidating a porous optical fiber preform in a heating apparatus comprising a muffle in which the porous optical fiber preform is placed and a plurality of multi-stage heaters coupled to an outer circumference of the muffle in a longitudinal direction of the porous optical fiber preform, the method comprising the steps of:
Dependencies are inferred from the claim text.