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High-resolution Doppler-free molecular spectroscopy with a continuous-wave optical parametric oscillator

E. V. Kovalchuk·D. Dekorsy·A. I. Lvovsky·C. Braxmaier·J. Mlynek·A. Peters·S. Schiller
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Abstract

We present a reliable, narrow linewidth (100 kHz) continuous-wave optical parametric oscillator (OPO) suitable for high-resolution spectroscopy applications. The OPO is based on a periodically-poled lithium-niobate crystal and features a specially designed intracavity etalon which permits its continuous tuning and stable operation at any desired wavelength in a wide operation range. We demonstrate Doppler-free spectroscopy on a rovibrational transition of methane at 3.39 um.

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E. V. Kovalchuk, D. Dekorsy, A. I. Lvovsky, C. Braxmaier, J. Mlynek, A. Peters, S. Schiller. 2001-05-01. High-resolution Doppler-free molecular spectroscopy with a continuous-wave optical parametric oscillator. https://doi.org/10.1364/ol.26.001430

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