Open AccessAll-optical bandpass microwave filter based on an electro-optic phase modulator
Author(s) -
Fei Zeng,
Jianping Yao
Publication year - 2004
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/opex.12.003814
Subject(s) - band pass filter , optics , band stop filter , microwave , materials science , high pass filter , passband , optical filter
A novel all-optical microwave filter with a frequency response equivalent to a bandpass filter is presented. An electro-optic phase modulator combined with a dispersive device is employed to eliminate the baseband resonance of a typical lowpass filter. A two-tap bandpass transversal microwave filter with a null-to-null bandwidth of 8.8 GHz and a 35-dB notch rejection level is demonstrated.