title: Spatial control of femtosecond laser system output with submicroradian accuracy.
abstract: A system for the course control and spatial stabilization of the output beam of a femtosecond laser system is realized. An accuracy of 0.5 microrad is achieved long term in a laboratory environment for a beam with an initially daily deviation of more than 40 microrad. The application and importance of the method is illustrated for laser pulse shortening in a hollow waveguide resulting in a stable output power and an 8 fs pulse duration for more than 10 h operation time.
authors.affiliation: Max-Born-Institut, Max-Born Strasse 2A, Berlin D-12489, Germany.
authors.forename: Andrei
authors.initials: A
authors.lastname: Stalmashonak
authors.forename: Nickolai
authors.initials: N
authors.lastname: Zhavoronkov
authors.forename: Ingolf Volker
authors.initials: IV
authors.lastname: Hertel
authors.forename: Sergei
authors.initials: S
authors.lastname: Vetrov
authors.forename: Karl
authors.initials: K
authors.lastname: Schmid