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Cavity-enhanced absorption detection of H2S in the near-infrared using a gain-switched frequency comb laser
Ruth, Albert A.
Gutiérrez, M. D.
Springer Nature Switzerland AG
A custom-designed gain-switched frequency comb laser was passively coupled of to a medium-finesse cavity in the region between 6346 and 6354 cm−1 for the development of a prototype cavity enhanced absorption setup. The setup was applied to static gas detection of hydrogen sulfide at the parts per thousand level in a laboratory environment. A Fourier transform spectrometer was used for signal detection. The experimental performance of the setup was characterized in this proof-of-principle investigation; advantages, drawbacks and future scope of the approach are discussed in this article.
Gain-switched frequency comb laser , Medium-finesse cavity , Cavity enhanced absorption setup , Static gas detection , Hydrogen sulphide , Fourier transform spectrometer , Signal detection
Chandran, S., Mahon, S., Ruth, A. A., Braddell, J. and Gutiérrez, M. D. (2018) 'Cavity-enhanced absorption detection of H2S in the near-infrared using a gain-switched frequency comb laser', Applied Physics B, 124(4), 63 (9pp). doi:10.1007/s00340-018-6931-z
© 2018, Springer-Verlag GmbH Germany, part of Springer Nature. All rights reserved. This is a post-peer-review, pre-copyedit version of an article published in International Applied Physics B. The final authenticated version is available online at: https://doi.org/10.1007/s00340-018-6931-z