A mirror system for use in generating a short duration laser pulse is disclosed. The system includes first and second double-chirped mirrors disposed along an optical path within a cavity, where the second double-chirped mirror includes an additional phase-shifting layer as compared to the first double-chirped...http://www.google.de/patents/US6590925?utm_source=gb-gplus-sharePatent US6590925 - Double-chirped mirror systems and methods
