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Completed TRL 3 (started at 2, targeting 3)
We propose a multi-wavelength UV laser to address the critical Earth Science needs for simultaneous O3, Aerosol, SO2 profile measurements by developing a laser suitable for compact lidar systems. The low-SWaP, single cavity, and multi-wavelength laser configuration offers a new avenue for combined measurements on UAV and aircraft platforms. After completing this IRAD, LaRC will be able to conduct a first ground-based deployment to NYC in 2023 for a major TEMPO validation campaign and seek out additional funding sources through ESTO and/or HQ directed funds for development of an airborne version of a lidar system. There is inherent risk in deploying a new method into the field, and this is mitigated by conducting a validation exercise at LaRC with independent measurements to validate our approach prior to FY 23 field deployment.
FY22 IRAD support provided partial funding for the purchase a new a new short-pulse laser pump to enable development of the compact version of the laser. After ground validation and deployment, will place LaRC in a strong position to respond to the next ESTP IIP call for a complete portable lidar system using this new approach. A compact single-cavity UV transmitter to produce 4 wavelengths to simultaneously measure O3, SO2, and aerosol for lidar applications directly addresses NASA lidar needs for air-quality sub-orbital missions (already in high demand) as well as rapid response needs for volcanic mapping hazard investigations of interest to the air quality and aviation hazard communities.
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