Secure fiber optics communication system

Details Secure fiber optics communication system Secure fiber optics communication system

1976-08-19

1979-11-13

Birmiel, Howard A.

Radiant energy

Ionic separation or analysis

Static field-type ion path-bending selecting means

350 30, 250199, H04B 900, G02B 514

Patent

active

041741498

ABSTRACT:
A secure communications system is disclosed which utilizes an optical infation signal transmitted over a frangible optical fiber. An alarm signal is continuously transmitted from the information receiver site to the information transmitter site over the same optical fiber. Any attempt to penetrate the optical fiber for the purpose of intercepting the information transmitted therein causes the frangible fiber to shatter, thereby disrupting the alarm signal being received at the information transmitter site. The detection of this condition results in the immediate disabling of the information transmitter.

REFERENCES:
patent: 3700900 (1972-10-01), Herleikson
patent: 3778132 (1973-12-01), Pinnow et al.
patent: 3841882 (1974-10-01), Wolf
patent: 3853384 (1974-12-01), Pinnow et al.
patent: 3981592 (1976-09-01), Williams
patent: 4000416 (1976-12-01), Goell
patent: 4070091 (1978-01-01), Taylor et al.

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