Bright spatial solitons on a partially incoherent background
We present the first observation of incoherent antidark spatial solitons in noninstantaneous nonlinear media. This new class of soliton states involves bright solitons on a partially incoherent background of infinite extent. In the case where the nonlinearity is of the Kerr type, their existence is demonstrated analytically by means of an exact solution. Computer simulations and experiments indicate that these incoherent antidark solitons can propagate in a stable fashion provided that the spatial coherence of their background is reduced below the incoherent modulation instability threshold.
Coskun
TH
Department of Electrical Engineering and Computer Science, Lehigh University, Bethlehem, Pennsylvania 18015, USA.
Christodoulides
DN
Kim
YR
Chen
Z
Soljacic
M
Segev
M