Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
May 24, 2011
Patent Application Number
11968418
Date Filed
January 2, 2008
Patent Primary Examiner
Patent 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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