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Proceedings Paper

Development of a TRL-5 conductively-cooled 2-micron laser transmitter for coherent doppler wind lidar system
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Paper Abstract

Compact, reliable and conductively-cooled solid state 2-micron laser technology is a critical component of the 3-D Winds mission envisioned in the NRC Decadal survey. In order to mature the 2-micron laser technology to a Technical Readiness Level of 5 (TRL-5), we are developing a conductively-cooled single-frequency 2-micron laser meeting the performance requirements for this wind LIDAR mission and able to operate in vacuum. Conductive cooling is accomplished via heat pipes attached to a reconfigurable condenser plate. The ruggedized mechanical design is based upon design concepts used and validated for the NASA Ice, Cloud and Land Elevation Satellite-2 (ICESat-2) Mission. Achieving TRL-5 has particular challenges for this technology due to its unique requirements. The cold operating temperature mandated by the laser crystal (Ho:Tm:LuLF) and the long resonator required to generate <100 ns pulsewidths needed to maximize the LIDAR resolution, make stabilizing the laser more difficult than many other lasers. The completion and demonstration of this laser provides a platform for further maturation of solid state 2 micron laser technology to the TRL-6 required for space-based deployment.

Paper Details

Date Published: 17 September 2013
PDF: 10 pages
Proc. SPIE 8872, Lidar Remote Sensing for Environmental Monitoring XIV, 887205 (17 September 2013); doi: 10.1117/12.2024358
Show Author Affiliations
Timothy Shuman, Fibertek, Inc. (United States)
Floyd E. Hovis, Fibertek, Inc. (United States)
Upendra N. Singh, NASA Langley Research Ctr. (United States)
Mulugeta Petros, NASA Langley Research Ctr. (United States)
Jirong Yu, NASA Langley Research Ctr. (United States)
Michael J. Kavaya, NASA Langley Research Ctr. (United States)

Published in SPIE Proceedings Vol. 8872:
Lidar Remote Sensing for Environmental Monitoring XIV
Upendra N. Singh, Editor(s)

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