Method for producing optical fiber in a hydrogen atmosphere to p

Details Method for producing optical fiber in a hydrogen atmosphere to p Method for producing optical fiber in a hydrogen atmosphere to p

1990-09-24

1991-10-22

Fisher, Richard V.

Glass manufacturing

Processes

Forming product or preform from molten glass

65 13, 65 325, C03C 2100, C03B 37027

Patent

active

050592297

ABSTRACT:
An optical fiber is drawn from a draw blank that is situated in a furnace muffle. An end of the blank is heated to a temperature sufficient to permit a fiber to be drawn therefrom. During the fiber drawing operation, the blank is subjected to a gas containing an amount of hydrogen sufficient to reduce the number of defects in the fiber. The resultant fiber therefore experiences little or no latent attenuation increase when it is later subjected to a hydrogen containing atmosphere.

REFERENCES:
patent: 4553995 (1985-11-01), Chigusa
patent: 4600422 (1986-07-01), Scott
patent: 4659354 (1987-04-01), Roba
patent: 4685945 (1987-08-01), Freund
patent: 4911742 (1990-03-01), Newbould et al.
patent: 4913715 (1990-04-01), Jochem et al.

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