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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 34, Iss. 2 — Jan. 15, 2009
  • pp: 172–174

High-precision C O 2 isotopologue spectrometer with a difference-frequency-generation laser source

Dirk Richter, Bryan P. Wert, Alan Fried, Petter Weibring, James G. Walega, James W.C. White, Bruce H. Vaughn, and Frank K. Tittel  »View Author Affiliations

Optics Letters, Vol. 34, Issue 2, pp. 172-174 (2009)

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A precision laser spectrometer for the detection of C O 2 isotopes is reported. The spectrometer measures the fundamental absorption signatures of C 13 and C 12 isotopes in C O 2 at 4.32 μ m using a tunable mid-IR laser source based on difference-frequency generation. The spectrometer attains a precision of up to 0.02 for 150 s of averaging. An overall accuracy of 0.05 was obtained when sampling various calibrated reference gases.

© 2009 Optical Society of America

OCIS Codes
(120.6200) Instrumentation, measurement, and metrology : Spectrometers and spectroscopic instrumentation
(190.4360) Nonlinear optics : Nonlinear optics, devices
(280.4788) Remote sensing and sensors : Optical sensing and sensors

ToC Category:
Instrumentation, Measurement, and Metrology

Original Manuscript: October 15, 2008
Revised Manuscript: November 26, 2008
Manuscript Accepted: December 1, 2008
Published: January 14, 2009

Dirk Richter, Bryan P. Wert, Alan Fried, Petter Weibring, James G. Walega, James W. C. White, Bruce H. Vaughn, and Frank K. Tittel, "High-precision CO2 isotopologue spectrometer with a difference-frequency-generation laser source," Opt. Lett. 34, 172-174 (2009)

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