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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 17 — Sep. 1, 2014
  • pp: 5050–5053

Mid-infrared frequency comb for broadband high precision and sensitivity molecular spectroscopy

I. Galli, S. Bartalini, P. Cancio, F. Cappelli, G. Giusfredi, D. Mazzotti, N. Akikusa, M. Yamanishi, and P. De Natale  »View Author Affiliations


Optics Letters, Vol. 39, Issue 17, pp. 5050-5053 (2014)
http://dx.doi.org/10.1364/OL.39.005050


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Abstract

We report on the experimental demonstration of the metrological and spectroscopic performances of a mid-infrared comb generated by a nonlinear downconversion process from a Ti:sapphire-based near-infrared comb. A quantum cascade laser at 4330 nm was phase-locked to a single tooth of this mid-infrared comb and its frequency-noise power spectral density was measured. The mid-infrared comb itself was also used as a multifrequency highly coherent source to perform ambient air direct comb spectroscopy with the Vernier technique, by demultiplexing it with a high-finesse Fabry–Perot cavity.

© 2014 Optical Society of America

OCIS Codes
(120.2230) Instrumentation, measurement, and metrology : Fabry-Perot
(140.3590) Lasers and laser optics : Lasers, titanium
(140.4050) Lasers and laser optics : Mode-locked lasers
(190.4223) Nonlinear optics : Nonlinear wave mixing
(140.5965) Lasers and laser optics : Semiconductor lasers, quantum cascade

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: June 6, 2014
Revised Manuscript: July 14, 2014
Manuscript Accepted: July 17, 2014
Published: August 20, 2014

Citation
I. Galli, S. Bartalini, P. Cancio, F. Cappelli, G. Giusfredi, D. Mazzotti, N. Akikusa, M. Yamanishi, and P. De Natale, "Mid-infrared frequency comb for broadband high precision and sensitivity molecular spectroscopy," Opt. Lett. 39, 5050-5053 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-17-5050

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