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Proceedings Paper

Non-mechanical beam control for entry, descent and landing laser radar (Conference Presentation)

Paper Abstract

Laser radar for entry, descent, and landing (EDL) applications as well as the space docking problem could benefit from a low size, weight, and power (SWaP) beam control system. Moreover, an inertia free approach employing non-mechanical beam control is also attractive for laser radar that is intended to be employed aboard space platforms. We are investigating a non-mechanical beam steering (NMBS) sub-system based on liquid crystal polarization grating (LCPG) technology with emphasis placed on improved throughput and significant weight reduction by combining components and drastically reducing substrate thicknesses. In addition to the advantages of non-mechanical, gimbal free beam control, and greatly improved SWaP, our approach also enables wide area scanning using a scalable architecture. An extraterrestrial application entails additional environmental constraints, consequently an environmental test plan tailored to an EDL mission will also be discussed. In addition, we will present advances in continuous fine steering technology which would complement the coarse steering LCPG technology. A low-SWaP, non-mechanical beam control system could be used in many laser radar remote sensing applications including meteorological studies and agricultural or environmental surveys in addition to the entry, descent, and landing application.

Paper Details

Date Published: 7 June 2017
PDF: 1 pages
Proc. SPIE 10191, Laser Radar Technology and Applications XXII, 101910M (7 June 2017); doi: 10.1117/12.2262891
Show Author Affiliations
Jay E. Stockley, Boulder Nonlinear Systems (United States)
Kelly Kluttz, Boulder Nonlinear Systems (United States)
Lance Hosting, Boulder Nonlinear Systems (United States)
Steve Serati, Boulder Nonlinear Systems (United States)
Cullen P. Bradley, Exciting Technology, LLC (United States)
Paul F. McManamon, Exciting Technology, LLC (United States)
Farzin Amzajerdian, NASA Langley Research Ctr. (United States)

Published in SPIE Proceedings Vol. 10191:
Laser Radar Technology and Applications XXII
Monte D. Turner; Gary W. Kamerman, Editor(s)

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