Physics – Optics
Scientific paper
Sep 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994spie.2210..554s&link_type=abstract
Proc. SPIE Vol. 2210, p. 554-564, Space Optics 1994: Space Instrumentation and Spacecraft Optics, Thierry M. Dewandre; Joachim J
Physics
Optics
Scientific paper
This paper presents an overview of activities carried out in support of both NASA and European Space Agency programs for the development of a laser for space-based wind measurement. For the NASA Laser Atmospheric Wind Sounder (LAWS) program, a Phase One Laser Transmitter Study was undertaken, leading to the recommendation of an e-beam sustained CO(subscript 2) laser. For the European Space Agency (ESA) program for Development of a CO(subscript 2) Laser for Spaceborne Doppler Wind Lidar, some of the most significant results obtained to date are: (1) Demonstration of sealed lifetests using an e-beam sustained test laser to 10(superscript 7) pulses using a gas phase catalysis technique, (2) Optimization of multimode laser head efficiency to 17% has been accomplished, with a corresponding 10% single transverse mode efficiency, (3) Demonstration of foil lifetimes consistently in excess of 10(superscript 9) pulses at higher temperature and pressure pulse levels than expected in the breadboard laser, (4) Design, procurement, assembly, and initial testing of a compact breadboard laser. As well as laser performance, particular attention has been paid to the sever vibration requirements, thermal and gas flow aspects.
Robinson J. R.
Schwarzenberger Paul M.
Wallace Steven
Willetts David V.
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