光通信研究Issue(2)：1-4,4.DOI:10.13756/j.gtxyj.2018.02.001
基于特定色散曲线的全光混沌频谱展宽
All-Optical Chaos Frequency Spectrum Broadening Scheme based on Specific Dispersion Curve
摘要
Abstract
All-optical chaos has been widely used in the fields of secure communication and true random number generator be-cause of its simple structure,noise-like feature and unpredictability.In this paper,the phase effect of specific dispersion curve and the non-linear effect of internal and external laser cavity are used to flat the frequency spectrum of chaotic signals,so as to realize high-bandwidth chaotic signals and weaken the inherent correlation of chaotic signals in a certain extent.Firstly,this ar-ticle builds a traditional all-optical chaotic structure and analyzes its frequency spectrum characteristics.Then,a series of spe-cific dispersion curve generated by the dispersion compensation device is introduced into the external cavity ring of the system structure.Moreover,the impact of different dispersion curves in the frequency spectrum of chaotic signals is studied.Through the experimental results,this scheme is proved that it can broaden the frequency spectrum of the chaotic signals.关键词
全光混沌/真随机数发生器/色散曲线/混沌频谱展宽Key words
all-optical chaos/true random number generator/dispersion curves/chaos frequency spectrum broadening分类
信息技术与安全科学引用本文复制引用
胡晔,柯俊翔,义理林..基于特定色散曲线的全光混沌频谱展宽[J].光通信研究,2018,(2):1-4,4.基金项目
国家自然科学基金资助项目(61575122) （61575122）
