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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 34, Iss. 10 — May. 15, 2009
  • pp: 1513–1515

Development of 1.6 μ m continuous-wave modulation hard-target differential absorption lidar system for CO 2 sensing

Shumpei Kameyama, Masaharu Imaki, Yoshihito Hirano, Shinichi Ueno, Shuji Kawakami, Daisuke Sakaizawa, and Masakatsu Nakajima  »View Author Affiliations


Optics Letters, Vol. 34, Issue 10, pp. 1513-1515 (2009)
http://dx.doi.org/10.1364/OL.34.001513


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Abstract

We have demonstrated the 1.6 μ m cw modulation hard-target differential absorption lidar system for CO 2 sensing. In this system, ON and OFF wavelength laser lights are intensity modulated with cw signals. Received lights of the two wavelengths from the hard target are discriminated by modulation frequencies in the electrical signal domain. The optical circuit is fiber based, and this makes the system compact and reliable. It is shown that a stable CO 2 concentration measurement corresponding to a fluctuation of 4 ppm (rms) (ppm is parts per million) has been achieved in 32 s measurement intervals and the 1 km path.

© 2009 Optical Society of America

OCIS Codes
(010.3640) Atmospheric and oceanic optics : Lidar
(280.3640) Remote sensing and sensors : Lidar

ToC Category:
Atmospheric and Oceanic Optics

History
Original Manuscript: February 2, 2009
Revised Manuscript: March 28, 2009
Manuscript Accepted: April 1, 2009
Published: May 7, 2009

Citation
Shumpei Kameyama, Masaharu Imaki, Yoshihito Hirano, Shinichi Ueno, Shuji Kawakami, Daisuke Sakaizawa, and Masakatsu Nakajima, "Development of 1.6 μm continuous-wave modulation hard-target differential absorption lidar system for CO2 sensing," Opt. Lett. 34, 1513-1515 (2009)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-34-10-1513


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References

  1. R. M. Menzies and D. M. Tratt, Appl. Opt. 42, 6569 (2003). [CrossRef] [PubMed]
  2. G. J. Koch, B. W. Barns, M. Petros, J. Y. Beyon, F. Amzajerdian, J. Yu, R. E. Davis, S. Ismail, S. Vay, M. J. Kavaya, and U. N. Singh, Appl. Opt. 43, 5092 (2004). [CrossRef] [PubMed]
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  4. P. H. Flamant, in Proceedings of the International Laser Radar Conference (2006), p. 347.
  5. A. Amediek, A. Fix, M. Wirth, and G. Ehret, in Proceedings of the 23rd International Laser Radar Conference (2006), p. 143.
  6. S. Kameyama and Y. Hirano, “Differential absorption lidar apparatus having multiplexed light signals with two wavelengths in a predetermined beam size and beam shape,” U.S. patent 7,361,922 (April 22, 2008).

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