Title :
Tunable Microwave Photonic Filter Free from Carrier Suppression Effect with Positive and Negative Coefficients
Author :
Mora, J. ; Blanch, A. Ortigosa ; Pastor, D. ; Capmany, J.
Author_Institution :
Opt. & Quantum Commun. Group, Univ. Politecnica de Valencia
Abstract :
We present the theoretical analysis and experimental measurements of an all-optical novel configuration to implement a microwave photonic filter by combining a mode-locked fiber laser and a Mach-Zehnder structure in cascade to a 2times1 electro-optic modulator. The proposed structure shows a novel characteristic consisting on the RF filter being free from carrier suppression effect and thus not requiring single sideband modulation. Positive and negative coefficients are obtained inherently in the system and the tunability is achieved by controlling the optical difference path of the Mach-Zehnder structure without modifying the optical multiwavelength source and the dispersive link
Keywords :
Mach-Zehnder interferometers; electro-optical filters; electro-optical modulation; fibre lasers; laser mode locking; laser tuning; microwave filters; microwave photonics; Mach-Zehnder structure; RF filter; carrier suppression effect; electro-optic modulator; mode-locked fiber laser; tunable microwave photonic filter; Fiber lasers; Laser mode locking; Laser theory; Lasers and electrooptics; Microwave filters; Microwave measurements; Optical control; Optical filters; Optical modulation; Tunable circuits and devices; Microwave filters; Optical signal processing; Transversal filters;
Conference_Titel :
Microwave Photonics, 2006. MWP '06. International Topical Meeting on
Conference_Location :
Grenoble
Print_ISBN :
1-4244-0203-4
Electronic_ISBN :
1-4244-0204-2
DOI :
10.1109/MWP.2006.346515