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Numerical simulation of all normal dispersion visible to near infracred supercontinunm generation in photonic crystal fibers with core filled chloroform
Authors: Thi Minh Ngoc Vo, Dinh Quang Ho, Tung Thanh Le, Thi Gai Le, Canh Trung Le, Van Lanh Chu, Thuy Nguyen Thi, Van Thuy Hoang, Thanh Danh Nguyen, Van Hieu Le
127    0
Hue University Journal of Science: Natural Science
: 130     : 43-51
Publishing year: 6/2021
This study proposes a photonic crystal fiber made of fused silica glass, with the core infiltrated with chloroform as a new source of supercontinuum (SC) spectrum. We studied numerically the guiding properties of the fiber structure in terms of characteristic dispersion and mode area of the fundamental mode. Based on the results, the structural geometries of the CHCl3-core photonic crystal fiber was optimized in order to support the broadband SC generations. The fiber structure with lattice constant 1.0 μm, filling factor 0.8 and the diameter of the first-ring air holes equals 0.5 μm operates in all-normal dispersion. The SC with a broadened spectral bandwidth of 0.8 to 2.0 μm is formed by using a pump pulse having a wavelength of 850 nm, 120 fs duration and power of w. That fiber would be good candidates for all-fiber SC sources as cost-effective alternatives to glass core fibers
Photonic crystal fiber, supercontinuum generation, chloroform, nonlinear optics
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