Xiang Shunkai, Yang Min, Wang Jian
Opt Lett. 2022 Jun 1;47(11):2818-2821. doi: 10.1364/OL.457625.
Chaotic optical communications can provide a high level of security in data transmission. High-speed chaotic optical communications have hardly been implemented so far limited by the bandwidth of chaotic signals and the difficulties of wideband chaos synchronization. Here, we experimentally demonstrate all-optical wideband chaos synchronization and communications based on mutual injection of semiconductor lasers. Both 12.5-Gbaud on-off keying (OOK) signals and 10-Gbaud quadrature phase shift keying (QPSK) signals are successfully encrypted and transmitted over a 10-km and 2-km single-mode fiber (SMF), respectively.
混沌光通信能够在数据传输中提供高度的安全性。由于混沌信号带宽的限制以及宽带混沌同步的困难，高速混沌光通信至今几乎尚未实现。在此，我们通过实验证明了基于半导体激光器相互注入的全光宽带混沌同步和通信。12.5 Gbaud的开关键控（OOK）信号和10 Gbaud的正交相移键控（QPSK）信号分别成功地在10公里和2公里的单模光纤（SMF）上进行了加密传输。
