Pump-tunable continuous-wave singly resonant optical parametric oscillator from 2.5 to 4.4 microm
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Updated: Jun 11, 2026
Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
Published on: May 30, 2014
Mikael Siltanen1, Markku Vainio, Lauri Halonen
1Laboratory of Physical Chemistry, Department of Chemistry, (A.I. Virtasen aukio 1), University of Helsinki, Finland.
Abstract:
We report a continuous-wave singly resonant optical parametric oscillator pumped by a widely tunable titanium-doped sapphire ring laser. It produces up to 0.8 W of mid-infrared power. The wavelength can be tuned in a few seconds from 2.5 to 3.5 microm or from 3.4 to 4.4 microm and scanned up to 40 GHz without mode-hops by only changing the pump beam wavelength. Spectroscopic capability is demonstrated by measuring parts of the photoacoustic absorption spectrum of NH(3) near 3196 cm(-1).
