Abstract
Propagation of high power laser beams in 3-D nonlinear media is unstable, leading to self-focusing, beam filamentation, and sometimes catastrophic material damage. In the 2-D case, however, it has been predicted that diffraction and nonlinear self-focusing can stably balance,1 and stable self-trapping of a laser beam in a multi-mode CS2 waveguide was recently observed.2 We describe observation of non-diffracting spatial soliton beams in a single-mode glass planar waveguide.3 These spatial soli tons, illustrated schematically in Fig. 1, are completely analogous to the temporal solitons which propagate in the anomalous dispersion regime in singlemode glass optical fibers.
© 1990 Optical Society of America
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