Development of a frequency-locked Er:YAG laser for methane and water vapor DIAL

Nathan Harkema; Evan Hale; Thomas Moore; Travis Jones; Mary Erfani; Scott Setzler; Patrick Burns

doi:10.1117/12.3002925

12 March 2024 Development of a frequency-locked Er:YAG laser for methane and water vapor DIAL

Nathan Harkema, Evan Hale, Thomas Moore, Travis Jones, Mary Erfani, Scott Setzler, Patrick Burns

Proceedings Volume 12864, Solid State Lasers XXXIII: Technology and Devices; 1286406 (2024) https://doi.org/10.1117/12.3002925
Event: SPIE LASE, 2024, San Francisco, California, United States

Abstract

Information on the spatial distributions of methane and vertical profiles of water vapor are essential in better understanding the carbon cycle, atmospheric dynamics and their roles in climate change and numerical weather prediction. Fibertek is developing Er:YAG laser technology for differential absorption lidar (DIAL) that can simultaneously access methane (1645.55 nm) and water vapor (822.92 nm) absorption lines. In this paper we will present data on a hardened 1kHz single-frequency oscillator that is frequency doubled to produce 3 mJ at 823 nm and 3 mJ at 1645 nm for airborne DIAL on the NASA Langley HALO platform. Status and challenges addressed in power scaling experiments on the Er:YAG system for a space-based mission will also be presented. Finally, we will present small signal gain measurements in Er:YAG which show the benefits of low temperature operation for power scaling.

Conference Presentation

Citation Download Citation

Nathan Harkema, Evan Hale, Thomas Moore, Travis Jones, Mary Erfani, Scott Setzler, and Patrick Burns "Development of a frequency-locked Er:YAG laser for methane and water vapor DIAL", Proc. SPIE 12864, Solid State Lasers XXXIII: Technology and Devices, 1286406 (12 March 2024); https://doi.org/10.1117/12.3002925

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