We present a model for the dynamics of distributed-feedback fiber lasers that includes the effect of nonlinear refraction. The model predicts antiphase and in-phase self-pulsations, asymmetric output, and deterministic chaos if the nonlinear refractive index of the fiber material is sufficiently large. Self-pulsations with frequencies of tens to hundreds of megahertz and pulse widths of several nanoseconds are observed in computer simulations.
© 1996 Optical Society of America
Original Manuscript: October 30, 1995
Published: April 1, 1996
Yuan-Hwang Liao and Herbert G. Winful, "Dynamics of distributed-feedback fiber lasers: effect of nonlinear refraction," Opt. Lett. 21, 471-473 (1996)