Highly GeO2 doped polarization maintaining PCF for dispersion compensation

摘要

In this paper a highly GeO2 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 psm/km at 1.33 μm and -903.5316 psm/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.