A stable train of compressed Stokes pulses (to ~10 nsec) is obtained in a stimulated Brillouin fiber ring laser (of length L = 83 m) by periodically interrupting the argon-ion cw pump beam with an intraring cavity acousto-optic modulator. Interruption of the pump action, at each round-trip time tr ≃ Ln/c, permits damping of the excited sound waves that accumulate at the entry of the fiber owing to the inertial response of the material, well described by the coherent three-wave stimulated Brillouin scattering model (C3W-SBS equations). Amplification and compression of the backscattered Stokes pulse are limited by nonlinear optical Kerr effect, which is incorporated into the C3W-SBS equations.
© 1989 Optical Society of America
Original Manuscript: March 1, 1988
Manuscript Accepted: November 17, 1988
Published: March 1, 1989
Jean Botineau, Claude Leycuras, Carlos Montes, and Eric Picholle, "Stabilization of a stimulated Brillouin fiber ring laser by strong pump modulation," J. Opt. Soc. Am. B 6, 300-312 (1989)