Connection structure of optical fibers sealed in metal pipes and

Details Connection structure of optical fibers sealed in metal pipes and Connection structure of optical fibers sealed in metal pipes and

1990-09-25

1991-12-31

Ullah, Akm

Optical waveguides

With splice

Fusion splicing

G02B 636

Patent

active

050766570

ABSTRACT:
Metal pipes containing optical fibers are connected to each other directly or indirectly by use of a sleeve. In case of using the sleeve, the sleeve is connected at one end to one of the metal pipes, after the optical fibers are connected. Then, the sleeve is elongated by a predetermined length, so that the sleeve is connected at the other end to the other metal pipe. Consequently, no tensile stress resides in the connected optical fibers in the connected structure. When the metal pipes are connected directly to each other, one or both of the metal pipes are elongated, after the optical fibers are connected. Then, the metal pipes are connected by used of the elongated portions. Consequently, the same result is obtained as using the sleeve.

REFERENCES:
patent: 4023886 (1977-05-01), Nakayama et al.
patent: 4078910 (1978-03-01), Dalgoutte
patent: 4166672 (1979-09-01), Gilbert
patent: 4537468 (1985-08-01), Degoix et al.
patent: 4580874 (1986-04-01), Winter et al.
patent: 4708433 (1987-11-01), Kakii et al.
"Optical Communication Techniques", by Suzuki, Jan. 1987, pp. 111-119.
"Development of a field-usuable, High Strength Splicing Technique for 1.55 .mu.m Dispersion Shifted Fibers", by Osaka, pp.546-552, Inter. Wire & Cable Symp. 1988.
"Arc-Fusion Splicer with Profile Alignment System for High-Strength Low-Loss Optical Submarine Cable", by Yamada et al., Journal of Lightwave Tech., vol. LT-4, No. 8, Aug. 1986, pp. 1205-1211.

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