Dispersion Optimization in GeO2-doped Silica Photonic Crystal Fibers with Circular Lattice
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...
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| Main Author: | |
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| Format: | Article |
| Language: | English |
| Published: |
OICC Press
2023-06-01
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| Series: | Majlesi Journal of Electrical Engineering |
| Subjects: | |
| Online Access: | https://oiccpress.com/mjee/article/view/4998 |
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| Summary: | 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/É
= 0.4, É
= 0.9 µm and d1/É
= 0.45 and É
= 1.0 µm) are proposed with a very small dispersion value of 0.298 ps/ nm.km and â0.311 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 10â7 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. |
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| ISSN: | 2345-377X 2345-3796 |