FIBRE-OPTIC DATA TRANSMISSION SYSTEM WITH UNAUTHORISED ACCESS PROTECTION Russian patent published in 2011 - IPC G06F13/38 H04J14/00 H04K1/00 

FIELD: information technology.

SUBSTANCE: fibre-optic data transmission system with protection from unauthorised access has a transmitting and a receiving part connected by a fibre-optic channel, the transmitting part comprising a parallel data input bus, a pulse former, M matching amplifiers, M transmitting optoelectronic modules, M fibre-optic delay lines, an optical spectrally-selective coupler and an optical amplifier, a parallel N bit register, a memory device, and the receiving part comprising an optical spectrally-selective splitter, a fibre-optic delay line, a receiving optoelectronic module, a parallel data output bus consisting of N data lines and clock lines, (M-1) fibre-optic delay lines, (M-1) receiving optoelectronic modules, an OR logic element and a second memory device.

EFFECT: high level of protection of transmitted information from unauthorised access.

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