摘要
提出了一种新型的光域相控阵技术,该技术基于ASE宽谱光源,实现了nQAM矢量信号格式的不同调制速率的20 km传输和真延时控制,并实现了4路5 bit真延时信号分配,各路功率一致性0.5 dB以内,延时精度1 ps。
We proposed a novel method of optical beam forming network based on broadband optical source. Vector signal of nQAM was transmitted over 20 km and delayed by controlling. True time delay of 4 lines and 5 bit precise was distributed. Less than 0.5 dB ripple of amplitude and lps true time delay precise was accomplished.
出处
《电子技术应用》
北大核心
2012年第2期94-97,共4页
Application of Electronic Technique
关键词
宽谱光源
波束形成
微波光子学
矢量信号
broadband optical source
beam forming
microwave photonics
vector signal
