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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 37, Iss. 33 — Nov. 20, 1998
  • pp: 7906–7911

Tunable diode laser absorption spectroscopy of carbon monoxide around 2.35 μm

Jean-Christophe Nicolas, Alexei N. Baranov, Yvan Cuminal, Yves Rouillard, and Claude Alibert  »View Author Affiliations


Applied Optics, Vol. 37, Issue 33, pp. 7906-7911 (1998)
http://dx.doi.org/10.1364/AO.37.007906


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Abstract

Novel GaInSbAs/GaSb multiple-quantum-well lasers operating near room temperature have been successfully used for tunable diode laser absorption spectroscopy in the vicinity of 2.35 μm. Continuous current tuning over a more than 150-GHz frequency range has been realized. Direct absorption measurements have been carried out on the R9, R10, R11, and R12 lines of carbon monoxide. Traces of carbon monoxide at the level of 0.3 part in 106 in volume at 100 Torr could be detected by the low-frequency wavelength-modulation technique and an astigmatic multipass cell. These results show a potential use of these diode lasers in portable low-cost trace-pollutant sensors.

© 1998 Optical Society of America

OCIS Codes
(230.5590) Optical devices : Quantum-well, -wire and -dot devices
(280.3420) Remote sensing and sensors : Laser sensors
(300.1030) Spectroscopy : Absorption
(300.6260) Spectroscopy : Spectroscopy, diode lasers
(300.6340) Spectroscopy : Spectroscopy, infrared
(300.6380) Spectroscopy : Spectroscopy, modulation

History
Original Manuscript: March 26, 1998
Published: November 20, 1998

Citation
Jean-Christophe Nicolas, Alexei N. Baranov, Yvan Cuminal, Yves Rouillard, and Claude Alibert, "Tunable diode laser absorption spectroscopy of carbon monoxide around 2.35 μm," Appl. Opt. 37, 7906-7911 (1998)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-37-33-7906

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