We show that the spatial coherence of a partially incoherent light beam can be greatly enhanced through an energy-conserving interaction with an incoherent or a coherent dark spatial soliton. Computer simulations show that during this process a portion of the incoherent beam is trapped within the dark notch of the dark soliton, thus forming a sharp intensity spike. In this region the correlation length dramatically increases by at least 2 orders of magnitude.
© 2000 Optical Society of America
[Optical Society of America ]
Tamer H. Coskun, Alexandra G. Grandpierre, Demetrios N. Christodoulides, and Mordechai Segev, "Coherence enhancement of spatially incoherent light beams through soliton interactions," Opt. Lett. 25, 826-828 (2000)