| Autor: |
Srinivasa Rao, M. P., Singh, Vivek, Sharma, Sanjeev |
| Předmět: |
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| Zdroj: |
International Journal of Microwave & Optical Technology; Jan2023, Vol. 18 Issue 1, p86-95, 10p |
| Abstrakt: |
A silica photonic crystal fiber (PCF) with three rings of air holes arranged in hexagonal lattice is proposed to modify and control the nonlinearity and dispersion properties. First time, semicircular air holes are taken near the core to obtain suspended core. High filling fraction and small suspended core are possible without disturbing other air holes in the cladding. Thus, the proposed PCF offers better properties and flexibility in fabrication than existing PCFs. Semicircles are elongated systematically towards center of the core based on eccentricity of the semicircles. The effect of core suspension on the dispersion, nonlinearity, effective area, confinement loss, dispersion penalty and bit error rate of the proposed PCFs are investigated using finite element method. This study reveals that the dispersion and zero dispersion wavelength can be modified by adjusting the eccentricity of the semicircles. It is found that the dispersion curves show two zero dispersion wavelengths at eccentricity greater than 0.2. The effect of the eccentricity of semicircles on nonlinearity, effective area and confinement loss has been observed and it is found that nonlinearity increases with an increase in eccentricity. In comparison with the reported results of the other PCFs, the proposed PCF shows similar dependence of fiber parameters on eccentricity of the semicircles. It is anticipated that the proposed PCF could reduce the fabrication difficulties due to its high pitch and semicircles of air holes near the core. Thus, these PCFs can be a new class of fabrication friendly PCFs for future applications in various field. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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