光子学报, 2018, 47 (10): 1023001, 网络出版: 2018-12-18
基于全数控光频梳的可编程微波光子滤波器
Programmable Microwave Photonic Filter Based on Fully Digital Optical Frequency Comb
微波光子滤波器 光学频率梳 受激布里渊效应 微波光子学 相位调制 Microwave photonic filter Optical frequency comb Stimulated Brillouin scattering Microwave photonic Phase modulation
摘要
借助全数控光频梳生成技术, 提出了一种基于受激布里渊散射效应的可编程微波光子滤波方案.对该方案的原理和结构进行分析并建立了可编程滤波模型, 通过实验进行验证, 获得了滤波带宽0.1~1 GHz范围内可调、顶部通带响应相对平坦、可重构、中心频率可在4~24 GHz大范围内连续调谐的微波光子滤波器.该滤波方案与已有的模拟控制的微波光子滤波方案相比, 具有全数控可编程的优良特性.
Abstract
In this paper, using a fully digital programmable optical frequency comb, a new kind of programmable microwave photonic filter based on stimulated Brillouin scattering is proposed. The principle and experiments scheme are described according to the filtering model established. In experiments, a reconfigurable microwave photonic filter is achieved, showing a tunable range of 0.1~1 GHz, flat top of passband responses and tunable central frequency in a large range of 4~24 GHz. Compared with the microwave photonic filters based on analog signal control, this microwave photonic filter scheme is fully digitally controlled and programmable.
王家琦, 邹喜华, 李沛轩. 基于全数控光频梳的可编程微波光子滤波器[J]. 光子学报, 2018, 47(10): 1023001. WANG Jia-qi, ZOU Xi-hua, LI Pei-xuan. Programmable Microwave Photonic Filter Based on Fully Digital Optical Frequency Comb[J]. ACTA PHOTONICA SINICA, 2018, 47(10): 1023001.