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Proceedings Paper

Optic fiber interferometric system for absolute distance measurement
Author(s): Shenghua Ye; Hai Xiao; Haitao Hong; Chunhe Wang
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Paper Abstract

An optic fiber interferometric system for measuring absolute distance up to 1 meter is presented. Two interferometers are employed in this system. A fiber Mach-Zehnder structured interferometer using a laser diode as source is set up to position the target and tuning the optic paths. Another fiber Mach-Zehnder structured interferometer with He-Ne laser source is used to measure the displacement. To expend the dynamic range of the system, the method of multiplexing the optic path by introducing accurately calibrated optic fibers into the system is illustrated. In addition, the signal processing methods used in the system are also discussed in the paper.

Paper Details

Date Published: 3 January 1996
PDF: 6 pages
Proc. SPIE 2594, Self-Calibrated Intelligent Optical Sensors and Systems, (3 January 1996); doi: 10.1117/12.229244
Show Author Affiliations
Shenghua Ye, Tianjin Univ. (China)
Hai Xiao, Tianjin Univ. (China)
Haitao Hong, Tianjin Univ. (China)
Chunhe Wang, Tianjin Univ. (China)


Published in SPIE Proceedings Vol. 2594:
Self-Calibrated Intelligent Optical Sensors and Systems
Anbo Wang, Editor(s)

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