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US08230702B2 Glass-tube extended-baking process 有权
玻璃管延长烘烤工艺

Glass-tube extended-baking process
Abstract:
Disclosed is a method of heat treating quartz glass deposition tubes at between 900° C. and 1200° C. for at least 115 hours. The resulting deposition tubes are useful in forming optical preforms that can yield optical fibers having reduced added loss.
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