Secure communications of CAP-4 and OOK signals over MMF based on electro-optic chaos
Jianzhou Ai, Lulu Wang, Jian Wang · Optics Letters · 2017
Chaos-based secure communication can provide a high level of privacy in data transmission. Here, we experimentally demonstrate secure signal transmission over two kinds of multimode fiber (MMF) based on electro-optic intensity chaos. High-quality synchronization is achieved in an electro-optic feedback configuration. Both 5 Gbit/s carrier-less amplitude/phase (CAP-4) modulation and 10 Gbit/s on-off key (OOK) signals are recovered efficiently in electro-optic chaos-based communication systems. Degradations of chaos synchronization and communication system due to mismatch of various hardware keys are also discussed.