Coated optical fibers

Details Coated optical fibers Coated optical fibers

2005-11-01

2005-11-01

Font, Frank G. (Department: 2883)

Optical waveguides

Having particular optical characteristic modifying chemical...

Of waveguide cladding

C385S126000, C385S127000, C385S128000, C385S145000, C385S141000, C385S123000

Reexamination Certificate

active

06961508

ABSTRACT:
A coated optical fiber can have a primary coating and a secondary coating, where the primary coating can have good microbending resistance and is obtained by curing a composition having a high cure speed. In one example, a coated optical fiber can include as optical fiber, a primary coating and a secondary coating. The optical fiber can have an attenuation increase of less than 0.650 dB/km at 1550 nm, with the primary coating having a modulus retention ratio of at least 0.5, a glass transition temperature of −35° C., and where the primary coating is obtained by curing a primary coating composition having a cure dose to attain 95% of the maximum attainable modulus of less than 0.65 J/cm2.

REFERENCES:
patent: 6528553 (2003-03-01), Komiya et al.
patent: 6539152 (2003-03-01), Fewkes et al.
patent: 6611647 (2003-08-01), Berkey et al.
patent: 6714712 (2004-03-01), Bishop et al.
patent: 2002/0146225 (2002-10-01), Bulters et al.
U.S. Appl. No. 10/320,806, filed Dec. 17, 2002, Bulters et al.

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