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Q: Quantenoptik

Q 5: Halbleiter- und Festkörperlaser

Q 5.5: Vortrag

Montag, 24. März 2003, 12:00–12:15, E001

Phase-coherent addition of laser beams — •Markus Reetz-Lamour, Kilian Singer, Michaela Tscherneck, Simon Fölling, Marc Eichhorn, and Matthias Weidemüller — Max-Planck-Institut für Kernphysik, Postfach 103980, D-69029 Heidelberg

We present a setup to coherently add two beams from separate diode lasers with identical frequencies in order to obtain a single coherent beam (degree of coherence ≥0.97) with well-defined polarization.

The frequencies of the two sources are simultaneously injection locked to a third laser oscillator. The laser beams are merged at a polarizing beam splitter cube with an active stabilization of the relative phase against acoustic noise and thermal drifts. Different schemes to control the relative phase are investigated. The system can easily be extended to coherently add a large number of laser sources.