| Autor: |
Thi Thuy Nguyen, Van Hung Dao |
| Jazyk: |
English<br />Vietnamese |
| Rok vydání: |
2021 |
| Předmět: |
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| Zdroj: |
Tạp chí Khoa học Đại học Đà Lạt, Pp 113-128 (2021) |
| Druh dokumentu: |
article |
| ISSN: |
0866-787X |
| DOI: |
10.37569/DalatUniversity.11.4.985(2021) |
| Popis: |
We examine the possibility of improving the nonlinear properties of photonic crystal fibers (PCFs) with As2Se3 substrates by creating a difference in the diameters of the air holes of the rings around the core. With the new design, all-normal dispersion properties, small effective mode area, high nonlinear coefficient, and low confinement loss were achieved in the long-wavelength range of 2.0–7.0 µm. The highest nonlinear coefficient is 4414.918 W-1.km-1 at 4.5 µm for the lattice constant (Ʌ) of 3.0 µm and the filling factor (d/Ʌ) of 0.85, while the lowest loss is 1.823´10-21 dB/cm with Ʌ = 3.5 µm and d/Ʌ = 0.8. Based on the numerical simulation results, the characteristics of two optimal structures have been analyzed in detail to guide the application in supercontinuum generation. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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