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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 35, Iss. 19 — Oct. 1, 2010
  • pp: 3300–3302

Optical parametric oscillator based off-axis integrated cavity output spectroscopy for rapid chemical sensing

Denis D. Arslanov, Simona M. Cristescu, and Frans J. M. Harren  »View Author Affiliations


Optics Letters, Vol. 35, Issue 19, pp. 3300-3302 (2010)
http://dx.doi.org/10.1364/OL.35.003300


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Abstract

An optical parametric oscillator (OPO), pumped by a fiber-amplified diode laser, is combined with off-axis integrated cavity output spectroscopy (OA-ICOS). The cw OPO (power 1.2 W , tunability 3 4 μm , 5 cm 1 mode-hop-free tuning) has a tuning speed of 100 THz / s , which is ideal for rapid and sensitive trace gas detection. Combined with OA-ICOS, a detection limit of 50 parts per trillion by volume ( 1 × 10 12 ) of ethane ( C 2 H 6 ) in nitrogen was obtained in 0.25 s at 2997 cm 1 , corresponding to a noise equivalent absorption sensitivity of 4.8 × 10 11 cm 1 Hz 1 / 2 . The system demonstrates real-time measurements of methane and water in exhaled human breath.

© 2010 Optical Society of America

OCIS Codes
(190.4360) Nonlinear optics : Nonlinear optics, devices
(190.4410) Nonlinear optics : Nonlinear optics, parametric processes
(190.4970) Nonlinear optics : Parametric oscillators and amplifiers
(300.6320) Spectroscopy : Spectroscopy, high-resolution
(300.6340) Spectroscopy : Spectroscopy, infrared
(300.6390) Spectroscopy : Spectroscopy, molecular

ToC Category:
Nonlinear Optics

History
Original Manuscript: August 2, 2010
Manuscript Accepted: September 14, 2010
Published: September 30, 2010

Virtual Issues
Vol. 5, Iss. 14 Virtual Journal for Biomedical Optics

Citation
Denis D. Arslanov, Simona M. Cristescu, and Frans J. M. Harren, "Optical parametric oscillator based off-axis integrated cavity output spectroscopy for rapid chemical sensing," Opt. Lett. 35, 3300-3302 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-19-3300

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