Mid-infrared dual-comb spectroscopy with an optical parametric oscillator

作者：Zhang Zhaowei^*; Gardiner Tom; Reid Derryck T

来源：Optics Letters, 2013, 38(16): 3148-3150.

DOI：10.1364/OL.38.003148

We present the first implementation of mid-infrared dual-comb spectroscopy with an optical parametric oscillator. Methane absorption spectroscopy was demonstrated with a resolution of 0.2 cm(-1) (5 GHz) at an acquisition time of similar to 10.4 ms over a spectral coverage at 2900-3050 cm(-1). The average power from each individual mid-infrared comb line was similar to 1 mu W, representing a power level much greater than typical difference-frequency-generation sources. Mid-infrared dual-comb spectroscopy opens up unique opportunities to perform broadband spectroscopic measurements with high resolution, high requisition rate, and high detection sensitivity.

• 出版日期2013-8-15