Method and system for encryption of optical signals
AssigneeLightscape Networks Ltd.
InventorsUri Mahlab, Michael Gutin
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Abstract
A method, a system and a device for encrypting an optical signal to be transmitted via an optical fiber communication link by causing controlled chromatic dispersion of said signal. The controllable decryption device, as well as the controllable decryption device, can be implemented in the form of a variable dispersion compensation module controlled by a decryption key. In the system, the encryption device and the decryption device are controlled in synchronism by an encryption key and a decryption key respectively, the keys preferably being functions of time symmetric with respect to the time axis.
Claims16
A method of encrypting an optical signal to be transmitted via an optical fiber communication link by causing controlled chromatic dispersion of said signal.
An encryption device for encrypting an optical signal to be transmitted via an optical fiber communication link, the device being capable of causing controlled chromatic dispersion of said signal.
A system for encryption of an original optical signal to be transmitted via an optical fiber communication link between a transmitting site and a receiving site, the system comprising
- a controllable encryption device at the transmitting site, capable of causing for controlled chromatic dispersion of said original signal, and
- a suitably controllable decryption device at the receiving site, capable of compensating the chromatic dispersion caused at the transmitting site so as to obtain said original signal.
Dependencies are inferred from the claim text.