Laser frequency self-stabilization effect in the presence of rapid perturbations

The response time of the laser frequency self-stabilization effect was investigated. The influence of the resonator-length modulation frequency F on the self-stabilization coefficient S_F was studied experimentally for a He–Ne/CH₄ laser. A reduction in the quantity S_F–1 by a factor of two was found at a modulation frequency much higher than the self-width of the output power peak.