06704485 is referenced by 7 patents and cites 1 patents.

A method for reducing the hydrogen aging loss of silica optical fibers by irreversible reaction of the peroxide defects with deuterium is described. This method comprises the step of contacting the optical fiber with deuterium by exposure to a gas mixture containing deuterium at a temperature compatible with the fiber without exposing the fiber to any further activation, and subsequently the step of degassing the fiber in a neutral atmosphere. The invention relates further to a process of producing optical fibers with low hydrogen aging loss wherein an optical fiber is treated using the method for reducing the hydrogen aging loss. Finally, the invention relates to optical fibers with low hydrogen aging loss obtainable by this process and telecommunication cables produced using these optical fibers. Using the new method, an activation step using intense light and/or elevated temperature is not necessary to achieve the reaction of peroxide defects in silica with deuterium. The process according to the invention allows reaction at temperatures such as the ambient temperature without any further activation.

Title
Method for reducing the hydrogen sensitivity of optical fibers at 1380nm-1410 nm
Application Number
9/933662
Publication Number
6704485 (B1)
Application Date
August 22, 2001
Publication Date
March 9, 2004
Inventor
Roger Charlton
Newton
NC, US
José G Piffaretti
Conover
NC, US
Terry Voots
Hickory
NC, US
Philippe Dupont
Levallois Perret
US
Isabelle DeCaux
Mantes la Ville
US
Jean Florent Campion
Conflans St Honorine
US
Agent
Sughrue Mion PLLC
US
Assignee
Alcatel
US
IPC
G02B 6/02
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