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Q: Quantenoptik

Q 312: Laserspektroskopie

Q 312.2: Talk

Wednesday, March 6, 2002, 14:15–14:30, HS 22/108

Continuous wave Optical Parametric Oscillators as new tools for high resolution spectroscopy — •A. Peters¹, U. Strößner¹, E. V. Kovalchuk¹, A. I. Lvovsky¹, A. Hecker¹, C. Braxmaier¹, and S. Schiller² — ¹Fachbereich Physik, Universität Konstanz, 78457 Konstanz, Germany — ²Institut für Experimentalphysik, Heinrich-Heine-Universität Düsseldorf, 40225 Düsseldorf, Germany

We present a new generation of continuous-wave optical parametric oscillators (cw OPOs) that are particularly well suited for applications in high resolution spectroscopy. Such systems can now provide powerful (10 – 800 mW) coherent radiation over an extremely wide range of wavelengths (550 – 4000 nm). They feature extremely narrow line-widths (< 50 kHz), continuous tunability (several GHz), and good long-term stability (< 100 MHz frequency drift per hour, < 5% power drift per hour). As an typical example for applications of single frequency cw OPOs we present first implementations of Doppler-free molecular spectroscopy (CH₄, I₂). We also discuss further applications, new developments and future perspectives.