Abstract
We report on a tunable continuous-wave mid-infrared optical parametric oscillator (OPO), which is locked to a fully stabilized near-infrared optical frequency comb using a frequency doubling scheme. The OPO is used for 40 GHz mode-hop-free, frequency-comb-locked scans in the wavelength region between 2.7 and 3.4 μm. We demonstrate the applicability of the method to high-precision cavity-ring-down spectroscopy of nitrous oxide (N2O) and water (H2O) at 2.85 μm and of methane (CH4) at 3.2 μm.
Original language | English |
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Pages (from-to) | 32429-32439 |
Number of pages | 11 |
Journal | Optics Express |
Volume | 22 |
Issue number | 26 |
DOIs | |
Publication status | Published - 29 Dec 2014 |
MoE publication type | A1 Journal article-refereed |