Third-order and quartic dispersions inducing Airy pulse regeneration in optical fiber links

Abstract

We report the regeneration of truncated Airy pulses using the asymmetric inversion phenomenon obtained exclusively with the interaction between the third-order dispersion (TOD) and the fourth-order dispersion (FOD). Such regeneration shows a succession of alternating hysteresis cycle shapes (HCSs) and reversed HCSs. The weakness of the dispersion of the medium makes it possible, compared to other pre-existing regeneration techniques, to obtain significantly greater maximum signal intensities in the focal area (FA) regions. Starting with an asymmetric inversion phenomenon in anomalous FOD is found to be the best method unlike the case of starting in normal FOD which achieves the worst case of regeneration in agreement with the results obtained in other techniques. Increasing the nonlinearity is deleterious for the regeneration so for more realistic conditions, it is rather required to operate with a weakly nonlinear transmission line at low value of the anomalous FOD.