Resonator, regenerative amplifier for ultrashort laser pulses and multilayer mirror

摘要

Resonator for the reinforcement of laser pulses, in particular of ultrashort laser pulses,with at least two mirrors for the reflection of the laser pulses,with a between the mirrors arranged optical gain medium for the amplification of the laser pulses andwith means for time expansion of the laser pulsescharacterized by the,that the means for time elongation by at least one mirror (6, 8, 12) are formed, its or their groups speed dispersion is chosen so that for the purpose of reducing the peak power required temporal extension of the laser pulses is achieved.