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Characterization of Artificial Guidestars Generated in the Mesospheric Sodium LayerUsing a 10 W average power sum-frequency laser, we have generated resonant fluorescence beacons in the mesospheric sodium layer and are currently evaluating them for use as an artificial guidestar for atmospheric compensation using adaptive optics. Two flashlamp pumped Nd:YAG lasers operating at 1.064 and 1.319 microns are mixed in a lithium triborate crystal to produce 589 nm light at 840 Hz. The laser emits 47.5 microsec mode-locked pulse trains at 11-14 mJ per pulse and is tuned to the sodium resonance transition with intracavity etalons.
Document ID
19920020066
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Jelonek, M. P. (Phillips Lab. Kirtland AFB, NM, United States)
Fugate, R. Q. (Phillips Lab. Kirtland AFB, NM, United States)
Lange, W. J. (Phillips Lab. Kirtland AFB, NM, United States)
Slavin, A. C. (Phillips Lab. Kirtland AFB, NM, United States)
Ruane, R. E. (Rockwell Power Systems Albuquerque, NM., United States)
Cleis, R. A. (Optical Sciences Co. Placentia, CA., United States)
Date Acquired
September 6, 2013
Publication Date
July 1, 1992
Publication Information
Publication: NASA. Langley Research Center, Sixteenth International Laser Radar Conference, Part 1
Subject Category
Geophysics
Accession Number
92N29309
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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