Title :
Microwave Photonic Notch Filter With Complex Coefficient Based on DDMZM
Author :
Wei Li ; Wen Ting Wang ; Wen Hui Sun ; Jian Guo Liu ; Ning Hua Zhu
Author_Institution :
State Key Lab. on Integrated Optoelectron., Inst. of Semicond., Beijing, China
Abstract :
We report a continuously tunable microwave photonic notch filter with complex coefficient based on dual-drive Mach-Zehnder modulator (DDMZM). The complex coefficient is realized by incorporating two complimentary wideband microwave photonic phase shifters in the system. The frequency response of the microwave photonic notch filter is continuously tunable over a full free-spectral range (FSR) without changing its shape and FSR by simply adjusting the bias of the DDMZM. The proposed approach is theoretically analyzed and experimentally verified.
Keywords :
microwave filters; microwave phase shifters; microwave photonics; notch filters; optical filters; optical modulation; optical phase shifters; optical tuning; complex coefficient based DDMZM; continuously tunable microwave photonic notch filter; dual-drive Mach-Zehnder modulator; free-spectral range; frequency response; wideband microwave photonic phase shifters; Band-pass filters; Microwave filters; Microwave photonics; Optical filters; Optical harmonic generation; Microwave photonic filter; complex coefficient; dual-drive Mach-Zehnder modulator;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2014.2320459
