Design and simulation of ultra flattened dispersion large mode area and low splice loss photonic crystal fiber

This paper presents dispersion flattened (DF) large mode area (LMA) fiber design based on single cladding structure using finite element method (FEM) with perfectly matched layer (PML) boundary. The modal properties of the PCFs are investigated due to change in cladding parameters. To improve these properties of PCF our proposed design has obtained satisfactory results especially for flattened dispersion, effective area and splice loss. It has been shown that proposed PCFs can obtain very low dispersion variation 0.3537 ps/(nm.km) along 1300nm to 1700nm wavelength, with both a large effective area more than 82 μm2 and splice loss of 0.0040 dB in 1550nm wavelength. As the properties obtained from simulation are suitable for the C+L+U communication bands, our proposed design can be used within these bands with better performance.