We present the experimental observation of a spatial vector soliton formed by counterpropagation of coherent optical fields. This is to our knowledge the first observation of a vector soliton in which the induced waveguide (potential) is periodic in the propagation direction. This vector soliton induces a waveguide and a thick grating within the waveguide, which can be used as a tunable optical waveguide filter.
© 2002 Optical Society of America
Oren Cohen, Song Lan, Tal Carmon, J. A. Giordmaine, and Mordechai Segev, "Spatial vector solitons consisting of counterpropagating fields," Opt. Lett. 27, 2013-2015 (2002)