摘要
提出了一种基于受激布里渊散射的单双通带可切换的微波光子滤波器。通过改变抽运光与信号光两波长之间的间隔,可实现单通带滤波器与双通带滤波器之间的切换,且通带频率可调。建立了理论模型并进行了仿真分析,并通过实验进行了验证。实验结果显示,抑制比达30dB,0~18GHz范围内的频率响应可调,实验结果与模拟结果相吻合。
In this study, we presented the design and testing of a microwave photonic filter with switchable single- and dual-passband operation based on stimulated Brillouin scattering. By adjusting the interval between the wavelengths of the pump light and the signal light, the filter can be switched from single- to dual-passband operation. Moreover, the passband frequency can be tuned. In addition, we prepared a theoretical model of this device and made the corresponding simulation. The analysis was verified using a proof-of-concept experiment. The experimental results show that the rejection ratio can be up to 30 dB, and the frequency tuning range is approximately 0-18 GHz. The experimental results are observed to agree well with the simulated results.
作者
徐恩明
李凡
张祖兴
李培丽
Xu Enming;Li Fan;Zhang Zuxing;Li Peili(Advanced Photonic Technology Laboratory, Nanjing University of Posts and Telecom munications,Nanjing, Jiangsu 210023, China)
出处
《光学学报》
EI
CAS
CSCD
北大核心
2019年第5期71-77,共7页
Acta Optica Sinica
基金
国家自然科学基金(61302026)
南京邮电大学自然科学基金(NY218052)
关键词
光通信
微波光子
滤波器
受激布里渊散射
相位调制
optical communications
microwave photonics
filter
stimulated Brillouin scattering
phase modulation
