Transmission of 100 Gbit/s (10×10 Gbit/s) Y-00 Quantum Stream Cipher for Secure Communication

For secure and high capacity optical fiber communications, WDM transmission experiment of 100-Gbit/s quantum stream cipher is demonstrated by Y-00 protocol with 64-level intensity modulation. Error-free transmission (bit-error rate < 10-9) in an 120-km amplifier repeated fiber link is successfully achieved.

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