Abstract
In this paper a highly GeO 2 doped single mode equiangular spiral photonic crystal fiber (HDES-PCF) is proposed to achieve high birefringence with extremely high negative dispersion, higher nonlinearity with low confinement loss for E+S+C+L+U band of interest. From the simulation results, large negative dispersion of −602.7803 ps/nm/km at 1.33 µm and −903.5316 ps/nm/km at 1.55 µm is achieved. High birefringence 5.8×10−2 at 1.33 µm, 5.3×10−2 at 1.55 µm with very low confinement loss is also achieved. Our proposed structure is also suitable for nonlinear applications because of nonlinearity ∼133.9298 W−1km−1 is achieved at 1.33 µm and ∼79.1229 W−1km−1 is achieved at 1.55 µm wavelength. The proposed PCF can be used in dispersion compensation, optical sensor, higher bit rate coherent communication, and polarization maintaining fiber etc.
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