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Proceedings Paper

High-frequency pulsed-diode laser anemometry
Author(s): Robert A. Lockey; Ralph P. Tatam
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Paper Abstract

The use of high-frequency pulsed diodes in laser Doppler anemometry allows the separation of multiple velocity components be means of time division multiplexing. An instrument based on such a technique is optically simpler than a multicomponent continuous-wave (CW) anemometer, but electronically much more complex. By including optical fibers and optical delay lines, the electronic requirements are reduced. In this paper, the practicality of a fiber delay network is demonstrated and the equivalence of pulsed and CW optical fringes is shown. Preliminary results for a 1-dimensional pulsed system are presented.

Paper Details

Date Published: 30 November 1994
PDF: 5 pages
Proc. SPIE 2341, Interferometry '94: Interferometric Fiber Sensing, (30 November 1994); doi: 10.1117/12.195530
Show Author Affiliations
Robert A. Lockey, Cranfield Univ. (United Kingdom)
Ralph P. Tatam, Cranfield Univ. (United Kingdom)

Published in SPIE Proceedings Vol. 2341:
Interferometry '94: Interferometric Fiber Sensing
Eric Udd; Ralph P. Tatam, Editor(s)

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