LASER SYSTEM

摘要

The invention relates to a laser system for generating laser pulses, comprising a seed laser and a regenerative amplifier, in which an amplifier laser pulse generated from a seed laser pulse of the seed laser can be amplified by multiple revolutions. The regenerative amplifier comprises a resonator, a controllable coupling element, which is placed inside the resonator, and comprises a solid disc, which is also situated inside the resonator and which is provided with a laser-active medium. The aim of the invention is to improve a laser system of the aforementioned type so that extracted laser pulses can be generated as easily as possible in picoseconds or in the span of subpicoseconds. To this end, the invention provides that at least one dispersion compensation element, which is passed through by the multiply revolving amplifier laser pulse during each revolution. In order to generate extracted laser pulses in the span of fewer than five picoseconds in the resonator, at least one dispersion compensation element, which is passed through by the multiply revolving amplifier laser pulse during each revolution, is provided with a negative dispersion which counteracts an increase in the pulse duration by positively dispersing components of the regenerative amplifier.