A coplanar waveguide linear resonator technique for the experimental characterization of the dielectric properties of films in the microwave frequency range at room temperature is proposed. The approach is simple to implement as it consists of a film with unknown high

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Dielectric characterization of MgTiO 3 , CaTiO 3 and MgTiO 3 (x)-CaTiO 3 (1-x) composite thick films with different concentrations (x = 0.95, 0.50, and 0.20) in the microwave frequency range at room temperature is presented. The films were fabricated by screen-printed method with thickness between 105 and 165 µ µ µ µm. Dielectric constant values between 4.2 and 17.5 and loss tangents between 0.0064 and 0.0098 were measured for frequencies in the range from 3.22 to 3.89 GHz using the coplanar waveguide (CPW) resonators technique. A relationship between the concentration ratio of MTO-CTO in the films and the dielectric constant is also presented.

A time-resolved anisotropic configuration exploiting the Z-scan technique in a one color pump-and-probe arrangement was implemented to measure the time response and the value of the nondiagonal component of the third-order nonlinear susceptibility of a chloroform solution of poly (3-hexadecylthiophene). In addition, an all-optical Kerr gate with picosecond response using the polymeric solution was implemented.

and hybrid Raman/EDFA. It was demonstrated by simulation that the hybrid solution provides an equalized gain over a bandwidth of 50 nm.An analysis of a Raman amplification solution for C þ L band is also presented for normal and resilient operation. The net gain and OSNR demonstrate the feasibility of this solution for normal operation scenario but the resilient operation scenario is affected by a high gain ripple and Kerr nonlinear effects due to the high power achieved are very penalizing.An experimental assessment of the impact of the amplification scheme on the performance of an IP 10 Gibagit Ethernet system was also accomplished, demonstrating that the hybrid scheme is more suitable for the analyzed network.