Spatial control of femtosecond laser system output with submicroradian accuracy.
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.
Stalmashonak
Andrei
A
Max-Born-Institut, Max-Born Strasse 2A, Berlin D-12489, Germany.
Zhavoronkov
Nickolai
N
Hertel
Ingolf Volker
IV
Vetrov
Sergei
S
Schmid
Karl
K