Title :
Tunable and Reconfigurable Bandstop Microwave Photonic Filter Based on Integrated Microrings and Mach–Zehnder Interferometer
Author :
Dengke Zhang ; Xue Feng ; Xiangdong Li ; Kaiyu Cui ; Fang Liu ; Yidong Huang
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
Abstract :
A bandstop microwave photonic filter is experimentally demonstrated with integrated optical processor fabricated on silicon-on-insulator substrate. The optical processor consists of microrings and a Mach-Zehnder interferometer so that two bandstop responses are produced for processing two sidebands separately. With such a structure, tunable and reconfigurable bandstop MPFs can be easily realized by thermally tuning the resonant wavelength of microrings. According to the experimental results, the operating frequency and 10-dB bandwidth can be tuned within the range of 7-34 GHz and 1.85-4.55 GHz, respectively.
Keywords :
Mach-Zehnder interferometers; band-stop filters; integrated optics; micro-optics; microwave filters; microwave photonics; optical fabrication; optical filters; optical tuning; Mach-Zehnder interferometer; Si; frequency 1.85 GHz to 4.55 GHz; frequency 7 GHz to 34 GHz; integrated microrings; integrated optical processor; reconfigurable bandstop microwave photonic filter; resonant wavelength; silicon-on-insulator substrate; thermal tuning; tunable microwave photonic filter; Bandwidth; Optical device fabrication; Optical filters; Optical polarization; Optical refraction; Optical variables control; Tuning; Integrated optics; microring resonators; microwave photonic filters; reconfigurability; tunability;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2013.2287091
