Место издания:Institute of Physics Pub Bristol, UK, England
Аннотация:In this paper we summarize our experience in dual feedback control of solid state lasers both inside the stability region and above its upper boundary. Combinations of negative and positive feedback loops were investigated on the basis of discrete map analysis, numerical simulation and experimentally with lamp and diode pumped Nd:YAG lasers. Dual feedback control allows to achieve: 1) stable operation of both continuous and pulsed lasers in a wide range of active media gain, 2) laser pulse shortening down to several tens of picoseconds and 3) regular burst mode with periods up to hundred laser cavity round trip times.