4 December 1998 Gas concentration measurements with DFB lasers to monitor volcanic activity
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Abstract
We report construction and operation of a multiplexed laser spectrometer, based on fiber coupled Distributed Feed-Back semiconductor diode lasers, for monitoring concentration of gases emitted from volcanoes. The main problems related to this particular application, as well as the way of operation of the apparatus are discussed. The first experimental data, recorded at the test site of Solfatara volcano, Naples, Italy are reported. To our knowledge, this is the first design of a small, low power consuming laser spectrometer for geochemical applications.
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Paolo De Natale, Paolo De Natale, Livio Gianfrani, Livio Gianfrani, G. De Natale, G. De Natale, R. Cioni, R. Cioni, } "Gas concentration measurements with DFB lasers to monitor volcanic activity", Proc. SPIE 3491, 1998 International Conference on Applications of Photonic Technology III: Closing the Gap between Theory, Development, and Applications, (4 December 1998); doi: 10.1117/12.328627; https://doi.org/10.1117/12.328627
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