Title :
QAM quantum noise stream cipher using digital coherent optical transmission
Author :
M. Yoshida;T. Hirooka;K. Kasai;M. Nakazawa
Author_Institution :
Research Institute of Electrical Communication, Tohoku University, 2-1-1 Katahira, Aobaku, Sendai, Japan
Abstract :
We present a high-security digital-coherent transmission scheme with a QAM-based two-dimensional quantum-noise stream cipher employing amplitude and phase encryption simultaneously and multi-bit encoding with a multi-bit basis state. 40 Gbit/s-480 km and real-time adaptive 20~60 Gbit/s-320 km secure transmissions are demonstrated.
Keywords :
"Quadrature amplitude modulation","Cryptography","Optical transmitters","Optical attenuators","Real-time systems","Receivers","Optical fibers"
Conference_Titel :
Signals, Systems and Computers, 2015 49th Asilomar Conference on
Electronic_ISBN :
1058-6393
DOI :
10.1109/ACSSC.2015.7421290
