Scientia Iranica, vol.27, no.6 D, pp.3035-3052, 2020 (SCI-Expanded)
© 2020 Sharif University of Technology. All rights reserved.This paper obtains optical soliton solutions in birefringent fibers that are studied in the presence of four-wave mixing. The extended trial function scheme is the integration algorithm, which is applied. Both Kerr law and parabolic laws are taken into account. The soliton solutions are presented with relevant integrability criteria.