Design of a Near Zero Ultraflatten Dispersion Photonic Crystal Fiber for Communication System

Rajesh Kumar Meena, Himanshu Joshi, Khushbu Sharma

The proposed photonic crystal fiber presents dispersion flattened optical fiber (DF-PCF) for tailoring near zero ultraflatten dispersion of 0.61 ps/nm/km for 1.26 µm to 1.64 µm wide wavelength range or 380 nm flat band as well as low confinement losses of near 10-5 dB/km. The finite difference time domain (FDTD) method with transparent boundary condition (TBC) is employed to investigate the guiding properties. Through the simulation result it has been observed that it is possible to achieve near zero ultraflatten dispersion of 0.61 ps/nm/km for 1.26 µm to 1.64 µm with low confinement losses of the order less than 10-5 dB/km for second and third optical window.