Using computer simulations, we examine the effects of higher-order dispersive and nonlinear propagation processes on the spectral and time development of ultrashort, high-intensity pulses propagating in single-mode optical fibers having normal dispersion. Our results indicate that both the cubic-dispersion term and the shock term of the nonlinear Schrödinger equation contribute to asymmetry in the pulse power spectrum and cause highly nonlinear chirp.
© 1987 Optical Society of America
Original Manuscript: November 10, 1986
Manuscript Accepted: December 30, 1986
Published: April 1, 1987
E. Bourkoff, D. N. Christodoulides, W. Zhao, and R. I. Joseph, "Evolution of femtosecond pulses in single-mode fibers having higher-order nonlinearity and dispersion," Opt. Lett. 12, 272-274 (1987)