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We numerically demonstrate a novel regime for generation of soliton structures in a normal-dispersion photonic-crystal microresonator. The results show that if one pumps not a split mode but neighboring one, it is possible to excite either triangular-shaped soliton or soliton crystal, depending on the spectral interval between pumped and split modes. Properties of the generated solitonic structures are studied and excitation conditions are revealed.
Lobanov et al. (Mon,) studied this question.