Highly nonlinear and low confinement loss photonic crystal fiber using GaP slot core

This paper presents a triangular lattice photonic crystal fiber (PCF) with very high nonlinear coefficient. Finite element method is used to scrutinize different optical characteristics of proposed highly nonlinear PCF (HNL-PCF). The HNL-PCF exhibits a high nonlinearity up to 10×10
⁴
W
^-1
km
^-1
over the wavelength band of 1500 nm to 1700 nm. Moreover, proposed fiber shows a very low confinement loss of 10
^-3
dB/km and chromatic dispersion of -9000 ps/(nm-km) at 1550 nm wavelength. Furthermore, dispersion slope, effective area are also analyzed thoroughly. The proposed fiber will be a suitable candidate for sensing applications, dispersion compensation, nonlinear signal processing and supercontinuum generation..