Design and Profile Optimization for Dispersion Shifted Fiber (DSF)
In designing of SM fibers, dispersion behavior is a major distinguishing feature which limits long distance and high speed transmission. Dispersion of SMF is lowest at 1.3 um, but the attenuation is minimum at 1.55 um. At 1.55um dispersion is higher. For achieving maximum transmission distance in a high capacity link, dispersion null should be at the wavelength of minimum attenuation .This may be achieved by mechanisms like reduction in fiber core with an accompanying increase in the relative RI to create Dispersion Shifted Fibers (DCF). In the proposed work by optimizing the fiber profile a fiber with minimum dispersion slope at the desired wavelength will be carried out.