Monomode optical fiber with protection against tapping of transm

Details Monomode optical fiber with protection against tapping of transm Monomode optical fiber with protection against tapping of transm

1989-08-28

1991-01-22

Sikes, William L.

G02B 622

Patent

active

049866290

ABSTRACT:
The core (2) of a monomode fiber is surrounded by a slightly monomode annular waveguide (6) guiding masking light having the same wavelength as the light conveyed by the core. The invention is particularly suitable for telecommunications.

REFERENCES:
patent: 4000416 (1976-12-01), Goell
patent: 4134642 (1979-01-01), Kapron et al.
IBM Technical Discl. Bull., vol. 30, No. 12, pp. 34-37, "Tap Resistant Optical Fibers"; May 1988.

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