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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 25 — Dec. 16, 2013
  • pp: 30707–30715

Dual-comb spectroscopy using frequency-doubled combs around 775 nm

Simon Potvin and Jérôme Genest  »View Author Affiliations

Optics Express, Vol. 21, Issue 25, pp. 30707-30715 (2013)

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Two frequency-doubled combs are generated by nonlinear frequency conversion to realize spectroscopic measurements around 775 nm. Frequency-doubled interferograms are corrected in real-time by monitoring the relative instabilities between the combs at their fundamental frequency. Rubidium absorption lines are used to demonstrate the technique’s accuracy and serve as absolute references to calibrate the frequency grid of computed spectra. The method allows frequency-doubled interferograms to be averaged without distortion during long periods of time. The calibrated frequency grid is validated by the measurement of the oxygen A-band. Moreover, the measurement analysis of the acetylene ν1 + 3ν3 overtone band has revealed some discrepancies with previous publications.

© 2013 Optical Society of America

OCIS Codes
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(140.4050) Lasers and laser optics : Mode-locked lasers
(300.6300) Spectroscopy : Spectroscopy, Fourier transforms
(300.6340) Spectroscopy : Spectroscopy, infrared

ToC Category:

Original Manuscript: October 14, 2013
Revised Manuscript: November 29, 2013
Manuscript Accepted: December 2, 2013
Published: December 5, 2013

Simon Potvin and Jérôme Genest, "Dual-comb spectroscopy using frequency-doubled combs around 775 nm," Opt. Express 21, 30707-30715 (2013)

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