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Proceedings Paper

CO2 laser technology for spaceborne doppler wind lidar
Author(s): Paul M. Schwarzenberger; Steven Wallace; R. J. Robinson; David V. Willetts
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Paper Abstract

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 CO2 laser. For the European Space Agency (ESA) program for Development of a CO2 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 107 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 109 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.

Paper Details

Date Published: 30 September 1994
PDF: 11 pages
Proc. SPIE 2210, Space Optics 1994: Space Instrumentation and Spacecraft Optics, (30 September 1994); doi: 10.1117/12.188113
Show Author Affiliations
Paul M. Schwarzenberger, GEC Hirst Research Ctr. (United Kingdom)
Steven Wallace, GEC Hirst Research Ctr. (United Kingdom)
R. J. Robinson, GEC Hirst Research Ctr. (United Kingdom)
David V. Willetts, Defense Research Agency (United Kingdom)

Published in SPIE Proceedings Vol. 2210:
Space Optics 1994: Space Instrumentation and Spacecraft Optics
Thierry M. Dewandre; Joachim J. Schulte-in-den-Baeumen; Emmanuel Sein, Editor(s)

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