Remote measurements of volcanic gases with diode-laser-based spectrometer

Year: 2000

Authors: Gianfrani L., De Natale P.

Autors Affiliation: Istituto Nazionale di Ottica, Largo E. fermi 6, 50125

Abstract: The measurement of the volcanic gases with a diode-laser-based spectrometer was discussed. Optical fibers and distributed-feedback (DFB) semiconductor diode lasers as coherent sources were used. The sensitivity and accuracy for CO2 detection was improved by ~2 orders of magnitude. It was found that the spectrometer could operate for long periods when powered with batteries and solar panels.


Volume: 11(12)      Pages from: 44  to: 44

KeyWords: Carbon dioxide; Coherent light; Composition; Distributed feedback lasers; Gas detectors; Heat flux; In situ processing; Optical fibers; Secondary batteries; Semiconductor lasers; Solar cells; Spectrometers; Volcanoes, Volcanic gases, Gas emissions