光通信研究Issue(4)：37-41,5.DOI:10.13756/j.gtxyj.2016.04.012
超窄带微环谐振滤波器的设计及传输特性分析
Transmission Characteristics of Active Tunable Microring Resonator Filter with Ultranarrow Passband
摘要
Abstract
We demonstrate theoretically an active tunable filter with a simple two-coupled-ring structure,which yields very nar-row passband based on Fano resonance in the transmission spectra.The active and tunable performances of the microring filter are achieved by the pump waveguide and micro-heating device,respectively.The formulas of the resonant transmission and the ultra narrow pass-band linewidth are derived through the coupled-mode theory.Then,the relationships between the gain and the transmission and linewidth,as well as the thermo-optic effect and the resonance wavelength of the microring waveguide are simulated useing MATLAB,respectively.The numerical calculation and simulation results show that the gain can increase transmittance and compress linewidth of the microring filter.It is also shown that the thermo-optic effect can make the reso-nant wavelength red shift or blue shift.关键词
微环谐振器/光滤波器/超窄带Key words
microring resonator/optical filter/ultranarrow passband分类
信息技术与安全科学引用本文复制引用
郑加金,宋家富,李培丽,陆云清..超窄带微环谐振滤波器的设计及传输特性分析[J].光通信研究,2016,(4):37-41,5.基金项目
国家自然科学基金资助项目(61405096) （61405096）
南京邮电大学国家自然科学基金孵化项目(NY215143) （NY215143）
