Real-time and on-field CO2 sensing based on a fast frequency modulation OPO system

Florent Défossez; Yves Hernandez; Jean-Bernard Lecourt; Alexandre Gognau; Simon Boivinet; Raphaël Vallon; Bertrand Parvitte; Virginie Zéninari; Sylvain Brohez; Dorothée Dewaele; Fabrice Cazier; André G. Peremans; Laurent Lamard; Antonio Baylon

doi:10.1117/12.2621659

17 May 2022 Real-time and on-field CO₂sensing based on a fast frequency modulation OPO system

Florent Défossez, Yves Hernandez, Jean-Bernard Lecourt, Alexandre Gognau, Simon Boivinet, Raphaël Vallon, Bertrand Parvitte, Virginie Zéninari, Sylvain Brohez, Dorothée Dewaele, Fabrice Cazier, André G. Peremans, Laurent Lamard, Antonio Baylon

Author Affiliations +

Proceedings Volume 12139, Optical Sensing and Detection VII; 121390V (2022) https://doi.org/10.1117/12.2621659
Event: SPIE Photonics Europe, 2022, Strasbourg, France

Abstract

We report on an on-field CO₂ sensing experiment based on a rapidly modulated optical parametric oscillator (OPO). This OPO is pumped by a mode-locked fibre laser source delivering 120 ps pulse laser with a spectral width of about 0.03 nm at a repetition frequency of 40 MHz and an average power of 5W. The output wavelength of the fibre laser pump source can be rapidly modulated resulting in a modulated mid-IR signal. This modulated signal around 2.7 μm was used for CO₂ detection during a field experiment by a deported (~100m) sampling method.

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Florent Défossez, Yves Hernandez, Jean-Bernard Lecourt, Alexandre Gognau, Simon Boivinet, Raphaël Vallon, Bertrand Parvitte, Virginie Zéninari, Sylvain Brohez, Dorothée Dewaele, Fabrice Cazier, André G. Peremans, Laurent Lamard, and Antonio Baylon "Real-time and on-field CO₂sensing based on a fast frequency modulation OPO system", Proc. SPIE 12139, Optical Sensing and Detection VII, 121390V (17 May 2022); https://doi.org/10.1117/12.2621659

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