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

Zhaowei Zhang, Tom Gardiner, Derryck Telford Reid

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Abstract

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. (C) 2013 Optical Society of America

Original languageEnglish
Pages (from-to)3148-3150
Number of pages3
JournalOptics Letters
Volume38
Issue number16
DOIs
Publication statusPublished - 15 Aug 2013

Keywords

  • FREQUENCY COMBS
  • LASERS
  • SPECTROMETER

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