[1] Agrawal G P. Induced focusing of optical beams in self-defocusing nonlinear media [J].Phys. Rev. Lett.,1990,64(21): 2487-2490.

[2] Agrawal G P. Transverse modulation instability of copropagating optical beams in nonlinear Kerr media [J].J.Opt. Soc. Am. B,1990,7(6): 1072-1078.

[3] Dinev S G,Dreischuh A A,Naidenov A M. Induced waveguiding in a medium with cubic nonlinearity [J].J. Opt.Soc. Am. B,1991,8(10): 2128-2131.

[4] Pietrzyk M E. On the properties of two pulses propagating simultaneously in different dispersion regimes in a nonlinear planar waveguide [J].J. Opt. A: Pure Appl. Opt.,1999,1(6): 685-696.

[7] Goutev N,Dreischuh A,Balushev S,et al. 2-D asymmetric induced phase modulation: spatial and spatio-temporal aspects [J].IEEE J. of Quantum Electr.,1995,31(12): 2114-2119.

[8] Porras M A,Medina R. Entropy based definition of laser beam spot size [J].Appl. Opt.,1995,34(36): 247-8251.