Huang Thomas X H, Yi Xiaoke, Minasian Robert A
School of Electrical and Information Engineering, University of Sydney, Sydney, NSW, Australia.
Opt Express. 2011 Mar 28;19(7):6231-42. doi: 10.1364/OE.19.006231.
A single passband microwave photonic signal processor based on continuous time impulse response that has high resolution, multiple-taps and baseband-free response as well as exhibiting a square-top passband and tunability, is presented. The design and synthesis of the frequency response are based on a full systematic model for single passband microwave photonic filters to account for arbitrary spectrum slice shapes, which for the first time investigates the combined effects from both the dispersion-induced carrier suppression effect and the RF decay effect due to the spectrum slice width, to enable the optimum design to be realized by utilizing the carrier suppression effect to improve the filter performance. Experimental results demonstrate a high order microwave filter showing high resolution single passband filtering as well as exhibiting reconfiguration, square-top passband and tunability, for the first time to our best knowledge.
本文提出了一种基于连续时间脉冲响应的单通带微波光子信号处理器，该处理器具有高分辨率、多抽头、无基带响应，同时呈现方顶通带和可调谐性。频率响应的设计与合成基于单通带微波光子滤波器的完整系统模型，以考虑任意频谱切片形状，首次研究了色散诱导的载波抑制效应和由于频谱切片宽度导致的射频衰减效应的综合影响，从而能够通过利用载波抑制效应来改善滤波器性能以实现最优设计。据我们所知，实验结果首次证明了一种高阶微波滤波器具有高分辨率单通带滤波以及重构、方顶通带和可调谐性。
