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Dans les annA(c)es rA(c)centes, des progrA]s sensibles ont A(c)tA(c) rA(c)alisA(c)s sur les nouveaux matA(c)riaux comme les matA(c)riaux piA(c)zo-A(c)lectriques en rA(c)ponse A des sollicitations naturelles ou provoquA(c)es. UtilisA(c)s comme actionneurs ou comme capteurs, ces matA(c)riaux permettent de construire des structures AintelligentesA ayant des capacitA(c)s de contrAle et de rA(c)actions spA(c)cifiques A certaines perturbations extA(c)rieures. Les performances de ces systA]mes dA(c)pendent fortement de la position, de la forme et du nombre des A(c)lA(c)ments actifs mis en jeu....

A system of microring resonators (MRRs) connected to an optical modified add/drop filter system is used. The optical soliton pulse of 60 GHz frequency band can be generated and used for millimeter waves in radio over fiber (ROF) applications. Wireless Personal Area Network (WPAN) as IEEE 802.15.3c is one of the applications for the ROF. The system uses chaotic signals generated by a Gaussian laser pulse propagating within a nonlinear MRRs system. The chaotic signals can be generated via a series of MRRs. The IEEE 802.15.3c standard operates at the 60 GHz frequency band, and it is applicable...