Title :
Reconfigurable RF photonic filter with negative coefficients and flat-top resonances using phase inversion in a newly designed 2 × 1 integrated Mach-Zehnder modulator
Author :
Pastor, Daniel ; Capmany, José ; Ortega, Beatriz ; Martinez, Alfonso ; Pierno, Luigi ; Varasi, Mauro
Author_Institution :
Opt. Commun. Group, Univ. Politecnica de Valencia, Spain
Abstract :
We report novel results for the implementation of incoherent radio-frequency (RF) photonic filters with negative coefficients using a newly developed 2 × 1 Mach-Zehnder modulator device featuring π-shifted RF modulation over the lightwave signals entering the device at complementary input ports. The characteristics of the novel device are described and the device used to implement an eight-tap (positive and negative) transversal RF photonic reconfigurable filter with square-type resonances.
Keywords :
Mach-Zehnder interferometers; electro-optical modulation; integrated optics; microwave photonics; optical filters; radiofrequency filters; π-shifted RF modulation; 2×1 integrated Mach-Zehnder modulator; eight-tap transversal RF photonic reconfigurable filter; flat-top resonances; incoherent radio-frequency photonic filters; lightwave signals; negative coefficients; phase inversion; reconfigurable RF photonic filter; square-type resonances; Microwave devices; Microwave filters; Optical filters; Optical modulation; Phase modulation; Photonic crystals; RF signals; Radio frequency; Resonance; Transversal filters;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2004.831954
