Dispersion Optimization in GeO2-doped Silica Photonic Crystal Fibers with Circular Lattice

Majlesi Journal of Electrical Engineering

مقاله 7، دوره 17، شماره 2، شهریور 2023، صفحه 57-67   

نوع مقاله: Reseach Article

شناسه دیجیتال (DOI): 10.30486/mjee.2023.1977591.1057

نویسنده

Thuy Nguyen Thi^*

University of Education, Hue University 34 Le Loi, Hue city, Viet nam

چکیده

In this paper, we analyze the dispersion properties of photonic crystal fiber with the core replaced by a composite of 85% SiO₂-15% GeO₂. The air hole's radii of the layers in the cladding are designed differently to improve the dispersion and nonlinear properties of the fibers. Both anomalous and all-normal dispersions have been optimized. Based on numerical simulation results, two optimal structures (d₁/Ʌ = 0.4, Ʌ = 0.9 µm and d₁/Ʌ = 0.45 and Ʌ = 1.0 µm) are proposed with a very small dispersion value of 0.298 ps/ nm.km and −0.311 ps/nm.km at the pump wavelength of 1.53 µm and 0.985 µm, respectively. The high nonlinear coefficient, small effective mode area, and very low attenuation of about 10⁻⁷ dB/m at the pump wavelength are also favorable conditions for the application of broad-spectrum supercontinuum with low peak power. The proposed fibers can be new supercontinuum sources that effectively replace glass core fibers.

کلیدواژه‌ها

Photonic Crystal Fibers؛ Composite SiO2-GeO2؛ Flat Dispersion؛ Small Effective Mode Area؛ Low Attenuation

سایر فایل های مرتبط با مقاله

7-2301-1057.pdf

مراجع

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