Component-level selection and qualification for the Global Ecosystem Dynamics Investigation (GEDI) laser altimeter transmitter
2018
Flight quality
solid-state lasersrequire 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
lasertransmitter design is, the quality and performance of individual subassemblies, optics, and
electro-opticsdictate the final
laserunit’s quality. The Global Ecosystem Dynamics Investigation (GEDI)
lasertransmitters 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
lasercrystals,
laserdiode arrays,
electro-optics, and optics, will be reviewed as well as the relevant critical issues encountered, prior to their installation in the GEDI flight
laserunits.
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