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Proceedings Paper

Novel wavelength scanning fiber optic interferometer for absolute distance measurement
Author(s): Yong Wang; Yanbiao Liao
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Paper Abstract

In this paper, we have proposed a novel wavelength scanning fiber-optic interferometer for absolute distance measurement. A wavelength scanning source is used to simultaneously illuminate two F-P cavities, one as a sensing interferometer, the other as reference interferometer. With this method, we can obtain absolute measurement, and decrease the demands on the light source, such as its stability of wavelength and power, its repeatability of scanning range. The accuracy of 0.2 micrometer and resolution of 0.04 micrometer are achieved, in the range of 0 - 2 mm.

Paper Details

Date Published: 24 September 1996
PDF: 6 pages
Proc. SPIE 2895, Fiber Optic Sensors V, (24 September 1996); doi: 10.1117/12.252168
Show Author Affiliations
Yong Wang, Tsinghua Univ. (China)
Yanbiao Liao, Tsinghua Univ. (China)

Published in SPIE Proceedings Vol. 2895:
Fiber Optic Sensors V
Kim D. Bennett; Byoung Yoon Kim; Yanbiao Liao, Editor(s)

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