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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 46, Iss. 21 — Jul. 20, 2007
  • pp: 4625–4632

Analytical method to find the optimal parameters for gas detectors based on correlation spectroscopy using a Fabry–Perot interferometer

Everardo Vargas-Rodríguez and Harvey N. Rutt  »View Author Affiliations


Applied Optics, Vol. 46, Issue 21, pp. 4625-4632 (2007)
http://dx.doi.org/10.1364/AO.46.004625


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Abstract

Several designs of infrared sensors use a Fabry–Perot interferometer (FPI) to modulate the incident light. In this work we analyze the particular case where the FPI fringes are matched with very well defined rovibrational absorption lines of a target molecule such as CO 2 , C O , N 2 O , or CH 4 . In this kind of sensor, modulation is induced by scanning the FPI cavity length over one half of the reference wavelength. Here we present an analytical method based on the Fourier transform, which simplifies the procedure to determine the sensor response. Furthermore, this method provides a simple solution to finding the optimal FPI cavity length and mirror reflectivity. It is shown that FPI mirrors with surprisingly low reflectivity ( < 50 % ) are generally the optimum choice for target gases at atmospheric pressure. Finally, experimental measurements and simulation results are presented.

© 2007 Optical Society of America

OCIS Codes
(070.2590) Fourier optics and signal processing : ABCD transforms
(120.2230) Instrumentation, measurement, and metrology : Fabry-Perot
(130.6010) Integrated optics : Sensors
(220.4830) Optical design and fabrication : Systems design
(300.6340) Spectroscopy : Spectroscopy, infrared

ToC Category:
Instrumentation, Measurement, and Metrology

History
Original Manuscript: February 26, 2007
Manuscript Accepted: March 28, 2007
Published: July 6, 2007

Citation
Everardo Vargas-Rodríguez and Harvey N. Rutt, "Analytical method to find the optimal parameters for gas detectors based on correlation spectroscopy using a Fabry–Perot interferometer," Appl. Opt. 46, 4625-4632 (2007)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-46-21-4625


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References

  1. J. J. Barrett and S. A. Myers, "New interferometric method for studying periodic spectra using a Fabry-Perot interferometer," J. Opt. Soc. Am. B 61, 1246-1251 (1971). [CrossRef]
  2. W. Jin, G. Stewart, B. Culshaw, S. Murray, and D. Pinchbeck, "Absorption measurement of methane gas with a broadband ligth and interferometric signal processing," Opt. Lett. 18, 1364-1366 (1993). [CrossRef] [PubMed]
  3. C. R. Batchellor and J. P. Dakin, "Wavelength scanning optical sensor," UK Patent Application GB 2181536A (1987).
  4. A. Mohebati and T. A. King, "Remote detection of gases by diode laser spectroscopy," J. Mod. Opt. 35, 319-324 (1998). [CrossRef]
  5. J. P. Dakin, Review of Fibre Optic Gas Sensors (Plessey, 1988).
  6. W. Jin, G. Stewart, B. Culshaw, and S. Murray, "Source-noise limitation of fiber-optic methane sensors," Appl. Opt. 34, 2345-2349 (1995). [CrossRef] [PubMed]
  7. E. Vargas-Rodriguez and H. N. Rutt, "Method to minimize spurious background signals in gas detectors based on correlation spectroscopy using a Fabry-Perot bandpass filter shape optimization," Opt. Eng. 44, 103002 (2005). [CrossRef]
  8. E. Hecht, Optics (Addison-Wesley, 1998).
  9. M. Born and E. Wolf, Principles of Optics (Pergamon, 1965).
  10. J. M. Vaughan, The Fabry-Perot Interferometer History, Theory, Practice, and Applications (Adam Hilger, 1989).
  11. J. H. Jaffe, "Concerning the use of the Fabry-Perot interferometer for wave-number measurement in the infrared," J. Opt. Soc. Am. 43, 1170-1173 (1953). [CrossRef]
  12. J. Spelman, S. Skrien, and T. E. Parker, "Design methodology for a Fabry-Perot interferometer used as a concentration sensor," Appl. Opt. 41, 2847-2857 (2002). [CrossRef] [PubMed]

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