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Component-level selection and qualification for the Global Ecosystem Dynamics Investigation (GEDI) laser altimeter transmitter
Author(s): Erich A. Frese; Furqan L. Chiragh; Robert Switzer; Aleksey A. Vasilyev; Joe Thomas; D. Barry Coyle; Paul R. Stysley
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Paper Abstract

Flight quality solid-state lasers require a unique and extensive set of testing and qualification processes, both at the system and component levels to insure the laser's promised performance. As important as the overall laser transmitter design is, the quality and performance of individual subassemblies, optics, and electro-optics dictate the final laser unit’s quality. The Global Ecosystem Dynamics Investigation (GEDI) laser transmitters employ all the usual components typical for a diode-pumped, solid-state laser, yet must each go through their own individual process of specification, modeling, performance demonstration, inspection, and destructive testing. These qualification processes as well as the test results for the laser crystals, laser diode arrays, electro-optics, and optics, will be reviewed as well as the relevant critical issues encountered, prior to their installation in the GEDI flight laser units.

Paper Details

Date Published: 10 May 2018
PDF: 10 pages
Proc. SPIE 10636, Laser Radar Technology and Applications XXIII, 106360T (10 May 2018); doi: 10.1117/12.2304032
Show Author Affiliations
Erich A. Frese, ASRC Federal Space and Defense (United States)
Furqan L. Chiragh, Pinnacle Engineering & Management Solutions, LLC (United States)
Robert Switzer, ASRC Federal Space and Defense (United States)
Aleksey A. Vasilyev, Trident Vantage Systems, LLC (United States)
Joe Thomas, NASA Goddard Space Flight Ctr. (United States)
D. Barry Coyle, NASA Goddard Space Flight Ctr. (United States)
Paul R. Stysley, NASA Goddard Space Flight Ctr. (United States)


Published in SPIE Proceedings Vol. 10636:
Laser Radar Technology and Applications XXIII
Monte D. Turner; Gary W. Kamerman, Editor(s)

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