Multispecies high-energy emitter for CO₂, CH₄, and H₂O monitoring in the 2 μm range

J. Barrientos Barria (1) , D. Mammez (2) , E. Cadiou (1) , J. B. Dherbecourt (1) , M. Raybaut (1) , T. Schmid (3) , A. Bresson (1) , J. M. Melkonian (1) , A. Godard (1) , Jacques Pelon (4) , M. . Lefebvre (1)

1 ONERA - The French Aerospace Lab [Palaiseau]
2 CNES - Centre National d'Études Spatiales [Toulouse]
3 ONERA - The French Aerospace Lab [Châtillon]
4 TROPO - LATMOS

We demonstrate the first emitter, based on a single optical source device, capable of addressing three species of interest (CO₂, CH₄, and H₂O) for differential absorption Lidar remote sensing of atmospheric greenhouse gases from space in the 2 μm region. It is based on an amplified nested cavity optical parametric oscillator. The single frequency source shows a total conversion efficiency of 37% and covers the 2.05–2.3 μm range.

Domaines: Physique Atmosphérique et Océanique [physics.ao-ph]; Sciences de l'environnement

J. Barrientos Barria, D. Mammez, E. Cadiou, J. B. Dherbecourt, M. Raybaut, et al.. Multispecies high-energy emitter for CO₂, CH₄, and H₂O monitoring in the 2 μm range. Optics Letters, 2014, 39 (23), pp.6719-6722. ⟨10.1364/OL.39.006719⟩. ⟨hal-01098466⟩