We have studied the interaction of ~55-psec-duration soliton pulse pairs over thousands of kilometers of optical fiber with loss periodically compensated by Raman gain. We indeed observe the expected short-range, phase-dependent interaction. But we also observe a long-range, phase-independent interaction caused by dispersive-wave radiation from the solitons.
© 1989 Optical Society of America
Original Manuscript: July 13, 1989
Manuscript Accepted: September 12, 1989
Published: November 15, 1989
K. Smith and L. F. Mollenauer, "Experimental observation of soliton interaction over long fiber paths: discovery of a long-range interaction," Opt. Lett. 14, 1284-1286 (1989)