Wang Li Xian, Zhu Ning Hua, Zheng Jian Yu, Liu Jian Guo, Li Wei
State Key Laboratory on Integrated Optoelectronics, Institution of Semiconductors, Chinese Academy of Sciences, Beijing, China.
Appl Opt. 2012 May 20;51(15):2935-40. doi: 10.1364/AO.51.002935.
We induce a microwave photonic bandpass filter into an optoelectronic oscillator to generate a chaotic ultra-wideband signal in both the optical and electrical domain. The theoretical analysis and numerical simulation indicate that this system is capable of generating band-limited high-dimensional chaos. Experimental results coincide well with the theoretical prediction and show that the power spectrum of the generated chaotic signal basically meets the Federal Communications Commission indoor mask. The generated chaotic carrier is further intensity modulated by a 10 MHz square wave, and the waveform of the output ultra-wideband signal is measured for demonstrating the chaotic on-off keying modulation.
我们将一个微波光子带通滤波器引入到一个光电振荡器中，以在光域和电域中产生一个混沌超宽带信号。理论分析和数值模拟表明，该系统能够产生带限高维混沌。实验结果与理论预测吻合良好，表明所产生的混沌信号的功率谱基本符合美国联邦通信委员会的室内标准。所产生的混沌载波进一步由一个10 MHz的方波进行强度调制，并测量输出超宽带信号的波形以演示混沌开关键控调制。
