Numerical simulation of dispersion properties in CCl4-infiltrated square photonic crystal fibers
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Abstract
The lattice defects, including differences in air hole size and distance between air holes, have contributed significantly to optimizing the dispersion properties of square lattice photonic crystal fibers with the infiltration of carbon tetrachloride. Through numerical simulation, we have investigated the effective refractive index and dispersion according to the change of lattice parameters. The ultraflat, all-normal dispersion with ΔD = ±0.98 ps/nm.km in the wavelength region of 1.394 μm - 1.734 μm is achieved. Four optical fibers with flat dispersion and small value at the pump wavelengths are proposed as low-power laser sources for studies on supercontinuum generation.
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References
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