Abstract

Suppressing chaotic behavior by addition of a weak second periodic perturbation signal, which is nearly resonant to a subharmonic of the fundamental system frequency, is observed in a modulated microchip LiNdP4O12 multimode laser by a highly sensitive self-mixing modulation technique. The stabilization of the unstable period-2 orbit embedded in a chaotic attractor is demonstrated in a wide parameter region. The chaos-suppressing experiments are well reproduced by simulations of globally coupled modulated Tang, Statz, and deMars [J. Appl. Phys. 34, 8289 (1963)] multimode laser equations, including a spatial hole-burning effect.

© 1997 Optical Society of America

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