Title :
A compact near-infrared diode-laser analyser for the measurement of atmospheric methane profiles on an airborne platform
Author :
D´Amato, F. ; De Rosa, M. ; Mazzinghi, P. ; Pantani, M. ; Poggi, P. ; Werle, P.W. ; Castagnoli, F.
Author_Institution :
Ist. Nazionale di Ottica Applicata, Firenze, Italy
Abstract :
In this paper, compact near-infrared distributed feedback diode-laser, emitting at 1.651 micron for the measurement of atmospheric methane profiles on an airborne platform is developed. The detection technique is based on two-tone frequency modulation spectroscopy. The calibration procedure for the analyser with respect to pressure changes during the flight mission is also discussed.
Keywords :
aircraft instrumentation; atmospheric chemistry; atmospheric techniques; calibration; gas sensors; infrared spectrometers; measurement by laser beam; modulation spectroscopy; organic compounds; semiconductor lasers; spectral analysers; 1.651 micron; airborne platform; atmospheric methane profiles measurement; calibration procedure; flight mission; near-infrared distributed feedback diode-laser analyser; two-tone frequency modulation spectroscopy; Aircraft; Atmospheric measurements; Diodes; Distributed feedback devices; Geophysical measurements; Instruments; Optical sensors; Spectroscopy; Temperature sensors; Wavelength measurement;
Conference_Titel :
Lasers and Electro-Optics Europe, 2003. CLEO/Europe. 2003 Conference on
Print_ISBN :
0-7803-7734-6
DOI :
10.1109/CLEOE.2003.1313545
