We believe that the effect observed by Xing et al. [Opt. Lett. 18, 479 (1993)] is essentially cross-phase modulation. It was inaccurately identified as self-bending of light, which is a self-action effect well known in the literature.
© 1994 Optical Society of America
A. E. Kaplan and G. A. Swartzlander, Jr., "Self-bending of light: comment," Opt. Lett. 19, 71-71 (1994)