Dispersion over all telecommunication bands with hexagonal photonic crystal fiber

The proposed design shows zero dispersion over all telecommunication bands (O to L) i.e., ranging from 1260nm to 1625 nm. The light is well confined in the center of the core of the proposed PCF at all telecommunication bands with a very low confinement loss in the order of 10−7. The proposed design has a core filled with a nematic liquid crystal (E7) that is highly flexibility with temperature. The effect of structure geometry and dispersion are investigated using hexagonal structure. The numerical result reveals that the design has negative dispersion at λ=2μm and zero dispersion from O-band to L-band. As the diameter of air hole in cladding increases, the dispersion changes upto −150ps/nm.km at wavelength 1μm. The proposed structure can be used in telecommunication and as a temperature sensor.