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Broadband chaotic signals generated by a photonic integrated circuit are employed to provide true random bit streams at Gb/s rates. Chaotic waveforms with appropriate spectral distribution and statistics succeed, after sampling, to pass randomness tests specified by NIST organization.
We propose a new architecture for optical chaos communication combining previously studied all-optical and electrooptical schemes. We investigate a cascaded system in terms of complexity and encryption efficiency in a transmitter-receiver setup. It is shown that the feedback delay time of the transmitter can be successfully hidden and that synchronization is very sensitive to delay mismatches, thus...
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