物理学报2011，Vol.60Issue(12)：277-286,10.
外部光注入混沌激光器产生超宽带微波信号的研究
Chaotic ultra-wideband microwave signal generation utilizing an optical injection chaotic laser diode
摘要
Abstract
The ideal ultra-wideband （UWB） microwave pulses that fully comply with the indoor spectrum mask governed by Federal Communications Commission（FCC Indoor Mask）are generated by using continuous-wave optical injection to a chaotic laser diode.We firstly simulate and demonstrate the photonic generation of the chaotic UWB signal according to the rate equations of laser diode with optical feedback and injection.The simulations display that the-10 dB bandwidth of UWB signal increases with the increases of optical injection strength,frequency detuning,linewidth enhancement factor and with the decrease of bias current of the slave laser,and the UWB signal central frequency changes in a range from 5 to 8 GHz.We further experimentally obtain tunable chaotic UWB microwave signals with a rate up to 500 Mbit/s by tuning optical injection strength when the other parameters are fixed.The experimental results are in accordance with the theoretical analyses.关键词
半导体激光器/混沌激光/光生微波技术/超宽带信号Key words
laser diode/chaotic laser/technology of photonic microwave/ultra-wideband signal分类
信息技术与安全科学引用本文复制引用
孟丽娜,张明江,郑建宇,张朝霞,王云才..外部光注入混沌激光器产生超宽带微波信号的研究[J].物理学报,2011,60(12):277-286,10.基金项目
国家自然科学基金 （）
国家重点基础研究发展计划（批准号：2010CB327800）资助的课题 （）
