High-Speed Optical Secure Communication System Using Phase Modulated Random Noise
2018 10th International Conference on Advanced Infocomm Technology (ICAIT)(2018)
Abstract
We report on a 10Gb/s secret transmission of an intensity-modulated message over 100km standard single mode fiber. The intensity-modulated message is encrypted with a phase-modulated random noise. Without decryption, the transmission signal appears to be noise-like and cannot be recovered with post-processing method. With decryption, bit error rate below 10-
8
is obtained. Decryption degradations with the mismatch of different hardware parameters are researched, This scheme provides a large key space with delay time the sensitive secret key and a robust decryption with the robustness of other hardware parameters.
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Key words
fiber optics communications,optical security and encryption,phase modulation
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