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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 11 — Jun. 1, 2014
  • pp: 3270–3273

Two-crystal mid-infrared optical parametric oscillator for absorption and dispersion dual-comb spectroscopy

Yuwei Jin, Simona M. Cristescu, Frans J. M. Harren, and Julien Mandon  »View Author Affiliations


Optics Letters, Vol. 39, Issue 11, pp. 3270-3273 (2014)
http://dx.doi.org/10.1364/OL.39.003270


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Abstract

We present a femtosecond optical parametric oscillator (OPO) containing two magnesium-doped periodically poled lithium niobate crystals in a singly resonant ring cavity, pumped by two mode-locked Yb-fiber lasers. As such, the OPO generates two idler combs (up to 220 mW), covering a wavelength range from 2.7 to 4.2 μm, from which a mid-infrared dual-comb Fourier transform spectrometer is constructed. By detecting the heterodyning signal between the two idler beams a full broadband spectrum of a molecular gas can be observed over 250cm1 within 70 μs with a spectral resolution of 15 GHz. The absorption and dispersion spectra of acetylene and methane have been measured around 3000cm1, indicating that this OPO represents an ideal broadband mid-infrared source for fast chemical sensing.

© 2014 Optical Society of America

OCIS Codes
(120.6200) Instrumentation, measurement, and metrology : Spectrometers and spectroscopic instrumentation
(190.4970) Nonlinear optics : Parametric oscillators and amplifiers
(300.6300) Spectroscopy : Spectroscopy, Fourier transforms
(300.6390) Spectroscopy : Spectroscopy, molecular

ToC Category:
Spectroscopy

History
Original Manuscript: March 21, 2014
Revised Manuscript: April 14, 2014
Manuscript Accepted: April 21, 2014
Published: May 27, 2014

Citation
Yuwei Jin, Simona M. Cristescu, Frans J. M. Harren, and Julien Mandon, "Two-crystal mid-infrared optical parametric oscillator for absorption and dispersion dual-comb spectroscopy," Opt. Lett. 39, 3270-3273 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-11-3270

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