Applied Physics B

, Volume 108, Issue 1, pp 183–188 | Cite as

Detection of propane using tunable diode laser spectroscopy at 3.37 μm

  • P. Kluczynski
  • S. LundqvistEmail author
  • S. Belahsene
  • Y. Rouillard
  • L. Nähle
  • M. Fischer
  • J. Koeth


We report Tunable Diode Laser Spectroscopy measurements of propane using a recently developed 3.37 μm GaInAsSb/AlGaInAsSb DFB laser. We have demonstrated that Wavelength Modulation Spectroscopy can be utilized to enhance a sharp feature in the broader propane spectrum around 3370.4 nm. A minimum detectable concentration of 30 ppb×m was obtained at a response time of 0.5 s. This corresponded to a minimum detectable absorption of 8 × 10−5 which is why an improvement of the sensitivity by an order of magnitude is possible using this laser and a more optimized optical setup.


GaSb Minimum Detectable Concentration Wavelength Modulation Spectroscopy Tunable Diode Laser Spectroscopy Wavelength Modulation Spectroscopy Signal 
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This work has been funded by the European Commission in the frame of the FP7 project SensHy (grant No. 223998).


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Copyright information

© Springer-Verlag 2012

Authors and Affiliations

  • P. Kluczynski
    • 1
  • S. Lundqvist
    • 2
    Email author
  • S. Belahsene
    • 3
  • Y. Rouillard
    • 3
  • L. Nähle
    • 4
  • M. Fischer
    • 4
  • J. Koeth
    • 4
  1. 1.Airoptic Sp. z.o.o.PoznańPoland
  2. 2.Siemens AB, IIA SLA R&DGöteborgSweden
  3. 3.Institut d’Electronique du SudUniversité Montpellier 2MontpellierFrance
  4. 4.Nanoplus GmbHGerbrunnGermany

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