Title :
Photonic microwave filter with negative coefficients based on WDM techniques
Author :
Vidal, B. ; Polo, V. ; Corral, J.L. ; Martí, J.
Author_Institution :
Fiber Radio Group, Univ. Politecnica de Valencia, Spain
Abstract :
A novel photonic microwave filter based on multiple optical carriers and a dispersive medium which allows the implementation of filters with negative coefficients is proposed and experimentally demonstrated. Negative coefficients are obtained using a differential detection scheme. The architecture allows the synthesis of photonic microwave filters using conventional digital filter design procedures and using mass-market optical devices.
Keywords :
differential detection; dispersive media; microwave filters; microwave photonics; optical filters; wavelength division multiplexing; WDM techniques; differential detection scheme; digital filter design; dispersive medium; mass-market optical device; multiple optical carriers; negative coefficients; photonic microwave filter; Delay effects; Dispersion; Finite impulse response filter; Microwave devices; Microwave filters; Microwave theory and techniques; Optical fiber couplers; Optical fiber devices; Optical filters; Wavelength division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2004.833086
