Study of the Influence of the Lattice Constant on Dispersion Characteristics and Confinement Loss in Dual-Core Photonic Crystal Fibers Made from PBG-08 Material
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Abstract
In this paper, we investigate the influence of the lattice constant on the dispersion characteristics and confinement loss of the dual-core photonic crystal fiber. We use fiber made from PBG-08 material with eight rings of air holes uniformly arranged in a hexagonal pattern in the cladding. The results show that adjusting the lattice constant allows effective control of the fiber’s dispersion properties, including magnitude, flatness, and zero-dispersion wavelength. As the lattice constant increases, the dispersion difference between the two cores decreases and becomes very small at Λ = 4.0 µm; at the same time, the confinement loss is reduced due to the weakened interaction between the two cores. The proposed dual-core fiber structure is capable of providing desirable dispersion characteristics over a broad wavelength range, demonstrating significant application potential, particularly in supercontinuum generation.
Keywords
Optical Nonlinear, dual core photonic crystal fiber, dispersion, confinement loss
Article Details
References
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