This paper presents a unique type of solid core Lead silicate (SF57) photonic crystal fiber (PCF), which stuffed with seven rings of air holes arranged in a triangular lattice pattern. The designed fiber exhibits a very high nonlinearity ~8607 W^(-1) km^(-1) and ~4640 W^(-1) km^(-1) at the operating wavelength 1.064 μm and 1.55 μm, respectively. In addition, the designed PCF has anomalous
... [Show full abstract] dispersion at a wide range of operating wavelength and two zero dispersion at wavelength 0.3 μm and 1.55 μm. Due to very large optical nonlinear coefficient with very low dispersion at pumping wavelength 1.55 μm, the designed PCF is best suitable medium for generating the wideband supercontinuum generation. The designed fiber may be fabricated by using flame and brushing technique.