The interaction forces between two dark solitons are numerically investigated. It is found that dark solitons are less affected than bright solitons by their respective interaction forces. An empirical expression for the separation of two solitons as a function of initial separation and traveling distance is deduced, which agrees well with numerical results.
© 1989 Optical Society of America
Original Manuscript: July 27, 1989
Manuscript Accepted: October 12, 1989
Published: December 15, 1989
W. Zhao and E. Bourkoff, "Interactions between dark solitons," Opt. Lett. 14, 1371-1373 (1989)