Abstract
This paper addresses optical solitons in birefringent fibers with Kerr law nonlinearity, in presence of perturbation terms and spatio-temporal dispersion. The Riccati equation expansion algorithm is applied to secure soliton solutions to the model. Dark and singular soliton solutions are obtained for both components of the model. Additional solutions revealed, with this algorithm, are plane waves and singular periodic solutions. These are obtained as a byproduct and are not applicable to birefringent fibers.