Miniature illuminator for laser Doppler velocimeter assembled on micromachined silicon optical bench
- Creators
- Ksendzov, A.
- Martin, R. D.
- Modarress, D.
-
Gharib, M.
- Others:
- Motamedi, M. E.
- Goering, Rolf
Abstract
We have built a miniature illuminator for Laser Doppler velocimeter on micromachined silicon optical bench utilizing a novel optical scheme. We used two intersecting coherent beams from the two opposing facets of semiconductor laser die to form a standing interference pattern needed for the particle detection and velocity measurement. Such devices are of interest to NASA for investigating wind patterns and dust loading on planets with atmosphere. They have been applied to problems where the liquid or gas flux must be characterized without disturbing the flow. In addition, the small probe volume makes possible local flow characterization and profiling. The device fabrication, and the results of the fringe characterization and velocity measurements are presented and discussed.
Additional Information
© 1999 Society of Photo-optical Instrumentation Engineers (SPIE). The research described in this paper was performed by the Center for Space Microelectronics Technology, Jet Propulsion Laboratory, California Institute of Technology, and was sponsored by the Directors research and Development Fund.Attached Files
Published - 304.pdf
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Additional details
- Eprint ID
- 88192
- Resolver ID
- CaltechAUTHORS:20180724-131523595
- JPL Director's Research and Development Fund
- Created
-
2018-07-24Created from EPrint's datestamp field
- Updated
-
2023-03-14Created from EPrint's last_modified field
- Series Name
- Proceedings of SPIE
- Series Volume or Issue Number
- 3878