Bright, dark and other optical solitons with second order spatiotemporal dispersion.

In this article, the single (bright, dark, singular) and combined (bright-dark, dark-singular) optical solitons have been extracted using extended fan sub-equation method. The corresponding integrability criteria, also known as constraint conditions, naturally emerge during the analysis of this model which is considered with the coefficients of group velocity dispersion and second order spatiotemporal dispersion. [ABSTRACT FROM AUTHOR]