Novel wavelength scanning fiber optic interferometer for absolute distance measurement

Yong Wang; Yanbiao Liao

doi:10.1117/12.252168

24 September 1996 Novel wavelength scanning fiber optic interferometer for absolute distance measurement

Yong Wang, Yanbiao Liao

Proceedings Volume 2895, Fiber Optic Sensors V; (1996) https://doi.org/10.1117/12.252168
Event: Photonics China '96, 1996, Beijing, China

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.

Citation Download Citation

Yong Wang and Yanbiao Liao "Novel wavelength scanning fiber optic interferometer for absolute distance measurement", Proc. SPIE 2895, Fiber Optic Sensors V, (24 September 1996); https://doi.org/10.1117/12.252168

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