We present design and first performance results of an airborne differential absorption lidar laser transmitter that can measure CO2 and water isotopes at different wavelengths around 2 µm with the same setup. This laser will be integrated into an airborne lidar, intended to demonstrate future spaceborne instrument characteristics with high-energy (several tens of millijoules nanosecond-pulses) and high optical frequency-stability (less than a few hundreds of kilohertz long-term drift). The transmitter consists of a widely tunable OPO with successive OPA that are pumped by a Nd:YAG MOPA and generates the on- and offline wavelength of the addressed species with narrow bandwidth.

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Michael Strotkamp, Jonas Hamperl, Jan Fabian Geus, Kjell M. Mølster, Andrius Zukauskas, Jean-Baptiste Dherbecourt, Valdas Pasiskevicius, Lukas Nagy, Oliver Pitz, David Fehrenbacher, Hanjo Schaefer, Dirk Heinecke, Stephan Rapp, Lennart Domdei, Nobert Graf, Paul Denk, Marine Dalin, Vincent Lebat, Rosa Santagata, Jean-Michel Melkonian, Antoine Godard, Myriam Raybaut, and Cyrille Flamant, "Versatile laser transmitter for an airborne CO2 and water vapor DIAL based on a parametric laser setup," Proc. SPIE PC12265, Remote Sensing of Clouds and the Atmosphere XXVII, PC1226507 (Presented at SPIE Remote Sensing: September 05, 2022; Published: 28 October 2022); https://doi.org/10.1117/12.2636197.6314354466112.