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In this work, a comparative study is made on photonic crystal fibre (PCF) with circular and elliptical air holes in square lattice for supercontinuum generation. Using finite-element method analysis in COMSOL MULTIPHYSICS 4.3b software, numerical investigation on optical parameters such as dispersion, confinement loss, birefringence and nonlinearity has been carried out. Change in each optical parameter...
In this investigation, we examine theoretically modulational instability (MI) in a dual-core optical fiber with higher order dispersion as well as higher order nonlinear effects. For dual-core or multicore optical fiber the investigation of MI analysis extends with parameters like linear coupling coefficient and coupling coefficient dispersion using extended coupled nonlinear Schrödinger equation...
In this work, we studied modulational instability (MI) in an asymmetrical dual-core optical fiber with different power ratio at under normal (β2 >0) and anomalous dispersion (β2 < 0) regime. We investigate the variation of modulational instability for symmetric and asymmetric power. The result shows the influence of power in the frequency at which the MI gain appears. When the nonlinear coefficient...
Optimal Generation of power in the electricity market by the stochastic search technique- Particle Swarm Optimization (PSO) is attempted in this paper. When all the market operators specify the format for submitting the rids of the supplies, the prominent one and the prominent one the most common format is the piecewise linear model. While, in a simple and distinct bidding mechanism, the merit order...
In this work, we have studied the different optical parameters of octagonal photonic crystal fiber under different liquid filled core like water, toluene and carbon disulfide (CS2). The optical properties like effective index, dispersion coefficient and nonlinear coefficient has been observed for a wavelength range of 800nm to 1600nm. Each characteristic is studied using finite element method (FEM)...
This paper presents a trajectory learning algorithm for sonar based LEGO Mindstorm NXT differential drive robot. The trajectory learning technique utilizes vehicle odometry and sensor scanning data. The aim of this technique is to find the obstacle free path for mobile robots. Consequently, a free configuration space from the higher dimension sensor data is extracted by employing highest eigen-vectors...
In the present investigation we have proposed a solid core photonic crystal fiber (PCF) with octagonal ring structured cladding. In order to compare, two cases has been obtained with different air filling ratio and filled with high refractive index material. Different optical parameters of the photonic crystal fiber like effective area, Nonlinear Coefficient, Confinement Loss and Dispersion has been...
To meet the future energy requirement and to give quality and pollution free supply to growing and environment conscious population, the present world is giving special attention to natural, clean and renewable energy sources. Due to growing demand for electrical energy and environmental issues such as pollution and global warming effect, solar energy is considered among one of the best options for...
In this paper, a stochastic search technique, namely Particle Swarm Optimization (PSO) is used to determine the optimal locations of two Static Var Compensators (SVCs) in an IEEE 14-bus system. Static Var compensators (SVC) are the most widely used shunt FACTS devices within power networks because of their smaller costs and significant system enhancements. Appeared about two decades ago, the SVC is...
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