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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 8 — Apr. 9, 2012
  • pp: 8804–8814

Real-time FPGA data collection of pulsed-laser cavity ringdown signals

T. G. Spence, M. E. Calzada, H. M. Gardner, E. Leefe, H. B. Fontenot, L. Gilevicius, R. W. Hartsock, T. K. Boyson, and C. C. Harb  »View Author Affiliations


Optics Express, Vol. 20, Issue 8, pp. 8804-8814 (2012)
http://dx.doi.org/10.1364/OE.20.008804


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Abstract

This paper presents results from a pulsed-laser cavity ring-down spectrometer with novel field programable gate array real-time data collection. We show both theoretically and experimentally that the data extraction can be achieved from a single cavity ringdown event, and that the absorbance can be determined without the need to fit the ringdown time explicitly. This methodology could potentially provide data acquisition rate up to 1MHz, with the accuracy and precision comparable to nonlinear least squares fitting algorithms.

© 2012 OSA

OCIS Codes
(120.6200) Instrumentation, measurement, and metrology : Spectrometers and spectroscopic instrumentation
(300.1030) Spectroscopy : Absorption
(300.6360) Spectroscopy : Spectroscopy, laser

ToC Category:
Spectroscopy

History
Original Manuscript: November 21, 2011
Revised Manuscript: March 3, 2012
Manuscript Accepted: March 19, 2012
Published: April 2, 2012

Citation
T. G. Spence, M. E. Calzada, H. M. Gardner, E. Leefe, H. B. Fontenot, L. Gilevicius, R. W. Hartsock, T. K. Boyson, and C. C. Harb, "Real-time FPGA data collection of pulsed-laser cavity ringdown signals," Opt. Express 20, 8804-8814 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-8-8804


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References

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