This paper studies theuncertain nonlinear dynamics of a MEMS optical switch addressing electrical, mechanical and optical subsystems. Recently, MEMS optical switch has had significant merits in reliability, control voltage requirements and power consumption. However, an inherent weakness in designing control for such systems is unavailability of switch position information at all times due to t...

In this paper, we proposed an all optical 4-to-2 encoder that has 4 input and 3 output ports. This device generates a 2 bit binary code based on which input port is active. We used nonlinear photonic crystal ring resonators along with optical power splitter for realizing the proposed encoder. In this device the switching rate and area are obtained about 333 GHz and 612µm2 respectively.

A sol-gel technique under ultrasonic irradiation was applied to synthesize ZrO2/TiO2/ZnOnanocomposites. X-ray diffraction analysis confirmed the successful synthesis of nanocomposites. The strain and crystalline size values of ZrO2/TiO2/ZnO nanocomposites are estimated to be 9.98×10-4 and 17.66 nm, respectively. The linear absorption coefficient of ZrO2/TiO2/ZnO nanocomposites was measure...

We review the nonlinear channel capacity of optical fiber communication systems using both linear and nonlinear amplifiers. We show that the capacity of a nonlinear transmission system employing linear optical amplifiers can be enhanced by over 300% by using all optical regeneration OCIS codes: 070.4340 Nonlinear optical signal processing, 190.4380 Four-wave mixing.

In solid-state materials lacking a center of symmetry, cascaded second-order nonlinear optical effects, especially the combination of optical rectification and the linear electro-optic effect, are an important contribution to degenerate four-wave mixing ~DFWM!, an experimental tool widely used to measure the third-order nonlinear optical susceptibility. This quantity determines the magnitude of...

In the present work third-order nonlinear optical (NLO) properties of complex-oxides crystals, including absorption (NLA) and refraction (NLR) are performed by Z-scan technique. The non-centrosymmetric lithium niobate (LiNbO3) tantalite (LiTaO3) centrosymmetric cadmium tungstate (CdWO4), calcium (CaWO4) molybdate (CaMoO4) single crystals were used for experimental investigation. main parameters...

Nonlinear optical phenomena enable novel photonic and optoelectronic applications. Especially, metallic nanoparticles thin films with nonlinear properties offer the potential for micro-optical system integration. For this purpose, new materials need to be continuously identified, investigated, utilized While noble-metal nanoparticles, nanostructures, of silver gold have been widely studied, iri...

In recent years, the optical third order nonlinear susceptibility X (3) has attracted considerable attention. Several three-wave mixing techniques have been developed to determine X(3) coefficients [ 1 -5 ] . Various contributions to the nonlinear susceptibility originating from single frequency resonances [6], Raman (difference frequency) resonances and two-photon resonances were inferred from...