Notch/bandpass Microwave Photonic Filter Based on a Microring Resonator and a LiNbO3 Phase Modulator

被引：5
|
作者：
Cong, Rong [1 ]
Li, Simin [1 ]
Pan, Shilong [1 ]
机构：
[1] Nanjing Univ Aeronaut & Astronaut, Minist Educ, Key Lab Radar Imaging & Microwave Photon, Nanjing 210016, Jiangsu, Peoples R China
来源：
2019 IEEE MTT-S INTERNATIONAL WIRELESS SYMPOSIUM (IWS 2019) | 2019年
基金：
中国国家自然科学基金;
关键词：
band-pass filters; microwave photonics; notch filters; microring resonator; polarization modulation;
D O I：
10.1109/ieee-iws.2019.8803916
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A notch/bandpass microwave photonic filter (MPF) with tunable frequency based on a microring resonator (MRR) and a LiNbO3 phase modulator is proposed and experimentally demonstrated. By adjusting the polarization controller (PC) between the PM and the MRR, the MPF can switch between a bandpass filter and a notch filter. The frequency of the MPF can be tuned by changing the wavelength spacing between the optical carrier and the resonator wavelength of the MMR. A proof-of-concept experiment is carried out. The notch/bandpass filter with a rejection ratio of 27 dB/15 dB can be achieved during a frequency tuning range from 9 GHz to 18.5 GHz.
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页数：3
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