Method for manufacturing optical fiber
OwnerTakahito ENDO, Manabu SHIOZAKI +4inventors
InventorsTakahito ENDO, Manabu SHIOZAKI, Shuhei TOYOKAWA, Kazuhiro YONEZAWA, Yuuji IZUMI, Maoto NOZEKI
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Abstract
An embodiment of the present disclosure provides a method for manufacturing an optical fiber in which an optical fiber is manufactured using a drawing furnace including a carbon furnace tube. The method includes drawing the optical fiber while supplying gas having an oxygen concentration of 3 ppm or more and 20 ppm or less as a major component of inert gas into the furnace tube.
Claims6
A method for manufacturing an optical fiber in which an optical fiber is manufactured using a drawing furnace including a carbon furnace tube, the method comprising:
- drawing the optical fiber while supplying gas having an oxygen concentration of 3 ppm or more and 20 ppm or less as a major component of inert gas into the furnace tube.
Dependencies are inferred from the claim text.