Optical fiber cable having a low permeability to hydrogen

Details Optical fiber cable having a low permeability to hydrogen Optical fiber cable having a low permeability to hydrogen

1985-05-01

1987-09-29

Sikes, William L.

350 9634, G02B 644

Patent

active

046965432

ABSTRACT:
Amorphous metallic material in ribbon form is employed to provide hermeticity of cable elements, particularly optical fibres. The metallic glass CuZr has a low permeability for hydrogen, particularly when erbium is included. Thus sealing optical fibres (1) in amorphous metal tubes (3) will prevent increase in attenuation of such fibres when used in submarine cables by preventing contact with hydrogen generated in such cables during use thereof.

REFERENCES:
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patent: 4525026 (1985-06-01), Elion
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J. Appl. Phys., vol. 53, No. 2, Feb. 1982, pp. 970-978, American Institute of Physics, New York, U.S., D. J. Mitchell et al., "Deuterium Permeation Through Copper with Trapping Impurities".
IEEE Journal on Selected Areas in Communications, vol. SAC-2, No. 6, Nov. 1984, pp. 842-847, IEEE, New York, U.S., K. Mochizuki et al., "Influence of Hydrogen on Optical Fiber Loss in Submarine Cables".
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