基于氮化硅微环和载波分离的可重构微波光子带通滤波器  

Reconfigurable Microwave Photonic Bandpass Filter Based on Silicon Nitride Microring and Carrier Separation

作　　者：李静[1] 郑鹏飞 徐雪朦 洪红 杨惠敏[1] 张若虎[1] 恽斌峰[1] Li Jing;Zheng Pengfei;Xu Xuemeng;Hong Hong;Yang Huimin;Zhang Ruohu;Yun Binfeng(Advanced Photonics Center,Southeast University,Nanjing,Jiangsu 210096,China)

机构地区：[1]东南大学先进光子学中心,江苏南京210096

出　　处：《激光与光电子学进展》2020年第1期109-114,共6页Laser & Optoelectronics Progress

基　　金：江苏省自然科学基金(BK20161429)。

摘　　要：基于Add-Drop型氮化硅微环滤波器,利用光学单边带调制和光载波分离的方法,实现可重构微波光子带通滤波器。滤波器带宽和带外抑制比分别达到726 MHz和37.0dB。并且通过改变光载波波长实现1.64~23.41GHz的滤波器频率调谐;通过调节微环耦合系数实现0.683~2.246GHz的滤波器带宽调谐,在带宽调谐范围内带外抑制比大于26dB。This study proposes a reconfigurable microwave photonic bandpass filter based on an Add-Drop silicon nitride microring filter via optical single sideband modulation and optical carrier separation.The measured bandwidth and out-of-band rejection ratio of the proposed microwave photonic filter are 726 MHz and 37.0 dB,respectively.Further,a filter with a frequency tuning range of 1.64-23.41 GHz can be achieved by tuning the optical carrier′s wavelength.In addition,the bandwidth can be adjusted to 0.683-2.246 GHz with an out-of-band rejection ratio of more than 26 dB by changing the coupling coefficients of the microring resonator.

关 键 词：集成光学 微波光子滤波器 可重构 微环谐振腔 载波分离 

分 类 号：O439[机械工程—光学工程]