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Proceedings Paper

Interferometric fiber optic accelerometer
Author(s): John G. Farah
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Paper Abstract

This paper presents an extrinsic Mach-Zehnder type accelerometer which utilizes a gap between a fiber cantilever and a fixed fiber. The problem of light insertion to the single mode fiber across the gap is eased with the use of quarter pitch GRIN lenses. Phase feedback is done through the laser diode in conjunction with active homodyne demodulation. The accelerometer has a dynamic range of 84 dB and a resolution of 10-4 g. The configuration uses all-fiber components which is readily transferable to the integrated-optic domain.

Paper Details

Date Published: 1 February 1994
PDF: 10 pages
Proc. SPIE 2045, Laser-Assisted Fabrication of Thin Films and Microstructures, (1 February 1994); doi: 10.1117/12.167567
Show Author Affiliations
John G. Farah, Massachusetts Institute of Technology (United States)

Published in SPIE Proceedings Vol. 2045:
Laser-Assisted Fabrication of Thin Films and Microstructures
Ian W. Boyd, Editor(s)

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