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A hexagonal photonic crystal fiber with central elliptical air hole is proposed to simultaneously obtain flattened dispersion and high birefringence by using finite element method. Simulation results demonstrate that by properly tuning the dimension of the elliptical air hole, it is possible to achieve very high negative and flattened dispersion characteristics over a wide range of wavelengths. The...
This paper proposed a microstructure cored photonic crystal fiber for gas sensing applications. The key research vision is to identify hazardous and colorless gases over a larger range of wavelength band covering 1 μm to 2.2 μm. Numerical simulation on the proposed PCF is carried out by full vectorial finite element method (FEM) with perfectly matched layer. The proposed PCF core contains vertically...
This paper proposes a design of a photonic crystal fiber (PCF) with ultra-high birefringence (0.0262 at 1550nm) which is more useful for sensor based on fiber optics. The finite element method (FEM) is used for simulation with 0.6 μm as the perfectly matched boundary layer (PML). This proposed design will offer the characteristics of nonzero-dispersion-shifted fiber (NZ-DSF) for 550nm waveband with...
A simple octagonal photonic crystal fiber (OPCF) is proposed to have simultaneously two zero dispersion wavelengths (ZDWs), high birefringence, large nonlinear coefficient and low confinement loss. The finite element method (FEM) with perfectly matched layer boundary condition is used for the simulation of the presented OPCF. It demonstrates to a fact that for optimum design parameters this OPCF exhibits...
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