We report the discovery of temporal and spectral self-shifts of dark optical solitons propagating in single-mode fibers. These shifts become increasingly pronounced as the intensity and the fiber length are increased. We show that our data are in quantitative agreement with numerical solutions to a modified nonlinear Schrödinger equation that includes the Raman contribution to the nonlinear refractive index.
© 1989 Optical Society of America
Original Manuscript: February 2, 1989
Manuscript Accepted: May 23, 1989
Published: August 15, 1989
A. M. Weiner, R. J. Hawkins, R. N. Thurston, W. J. Tomlinson, J. P. Heritage, D. E. Leaird, and E. M. Kirschner, "Temporal and spectral self-shifts of dark optical solitons," Opt. Lett. 14, 868-870 (1989)