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Nonlocal dark solitons under competing cubic–quintic nonlinearities

L. Chen, Q. Wang, M. Shen, H. Zhao, Y.-Y. Lin, C.-C. Jeng, R.-K. Lee, and W. Krolikowski

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Abstract

We investigate properties of dark solitons under competing nonlocal cubic–local quintic nonlinearities. Analytical results, based on a variational approach and confirmed by direct numerical simulations, reveal the existence of a unique dark soliton solutions with their width being independent of the degree of nonlocality, due to the competing cubic–quintic nonlinearities.

© 2012 Optical Society of America

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