Phase-dependent interactions of two photovoltaic bright spatial solitons in photorefractive Fe:LiNbO3 have been studied experimentally. We have observed that in-phase solitons attract each other and fuse together for a small enough crossing angle, whereas out-of-phase solitons repel each other. These results are similar to interactions of bright screening spatial solitons found in saturable photorefractive media such as strontium barium niobate.
© 2006 Optical Society of America
Original Manuscript: January 27, 2006
Revised Manuscript: April 12, 2006
Manuscript Accepted: April 29, 2006
Wing Kee Lee and Tak Shun Chan, "Experimental investigation of phase-dependent interactions of photovoltaic bright spatial solitons in photorefractive Fe:LiNbO3," J. Opt. Soc. Am. B 23, 1920-1924 (2006)