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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 37, Iss. 12 — Apr. 20, 1998
  • pp: 2502–2504

Frequency Modulation Spectroscopy with a Tunable CO2 Sideband Laser: Ozone Detection

Kambiz Shahnazi  »View Author Affiliations


Applied Optics, Vol. 37, Issue 12, pp. 2502-2504 (1998)
http://dx.doi.org/10.1364/AO.37.002502


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Abstract

The unblended ozone line at 1044.533 cm<sup>−1</sup> was acquired by using the frequency modulation technique. A tunable CO<sub>2</sub> sideband laser with a GaAs waveguide modulator with a tuning bandwidth of 20 GHz in the mid-infrared region was used for this sideband at 1-MHz frequency with a peak-to-peak amplitude of 1 V was imposed on the first tunable sideband. The signal was passed through a 1-m cell and collected with an EG&G detector. The signal-to-noise ratio obtained wasapproximately 100:1.

© 1998 Optical Society of America

OCIS Codes
(060.2360) Fiber optics and optical communications : Fiber optics links and subsystems
(140.3470) Lasers and laser optics : Lasers, carbon dioxide
(300.0300) Spectroscopy : Spectroscopy
(300.6380) Spectroscopy : Spectroscopy, modulation

Citation
Kambiz Shahnazi, "Frequency Modulation Spectroscopy with a Tunable CO2 Sideband Laser: Ozone Detection," Appl. Opt. 37, 2502-2504 (1998)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-37-12-2502


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References

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