Incoherently coupled anti-dark soliton pairs

The solutions of the intensity envelopes of a novel type of incoherently coupled spatial soliton pair, named anti-dark soliton pair, are deduced by careful theoretical analyses. Simultaneously the forming conditions of the anti-dark soliton pair are derived in the paper, according to which an example of anti-dark soliton family that exists in cubic-quintic nonlinear media is given.