Near infrared diode laser spectroscopy of C2H2, H2O, CO2 and their isotopologues and the application to TDLAS, a tunable diode laser spectrometer for the martian PHOBOS-GRUNT space mission

• Published in: Applied physics. B, Lasers and optics Vol. 99; no. 1-2; pp. 339 - 351
• Main Authors: Durry, G., Li, J. S., Vinogradov, I., Titov, A., Joly, L., Cousin, J., Decarpenterie, T., Amarouche, N., Liu, X., Parvitte, B., Korablev, O., Gerasimov, M., Zéninari, V.
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer-Verlag 01-04-2010; Springer Verlag
• Subjects: Carbon dioxide; Diode lasers; Engineering; Infrared; Laser diodes; Lasers; Missions; Optical Devices; Optics; Photonics; Physical Chemistry; Physics; Physics and Astronomy; Quantum Optics; Space missions; Spectrometers; Spectroscopy; Line Strength; Absorption Path Length; Laser Spectroscopy; Kerogen; HITRAN08 Database
• ISSN: 0946-2171; 1432-0649
• DOI: 10.1007/s00340-010-3924-y

A near-infrared tunable diode laser spectrometer called TDLAS has been developed that combines telecommunication-type as well as new-generation antimonide laser diodes to measure C
2
H
2
, H
2
O, CO
2
and their isotopologues in the near infrared. This sensor is devoted to the in situ analysis of the soil of the Martian satellite PHOBOS, within the framework of the Russian space mission PHOBOS-GRUNT. In the first part of the paper, we report accurate spectroscopic measurements of C
2
H
2
and
13
C
12
CH
2
near 1.533 μm, of H
2
O and CO
2
at 2.682 μm and of the isotopologues
13
C
16
O
2
and
16
O
12
C
18
O near 2.041 μm and H
2
17
O, H
2
18
O and HDO near 2.642 μm. The achieved line strengths are thoroughly compared to data from molecular databases or from former experimental determinations. In the second part of the paper, we describe the TDLAS spectrometer for the PHOBOS-GRUNT mission.