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Proceedings Paper

Signal processing of fiber-displacement sensor with linear-frequency-modulation laser diode
Author(s): Yang Zhao; Dacheng Li
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Paper Abstract

A fiber displacement sensor with a Linear Frequency Modulation (LFM) laser diode and its optical electric signal processing method are described in the paper. It operates on the principle of a non-balance optical fiber Michelson interferometer to realize heterodyne detecting. During processing the heterodyne signal, phase locked loops (PLL) are used to extend the resolution. The resolution of the sensor can reach to π/40. In the paper the experiment result is being showed also.

Paper Details

Date Published: 22 September 1993
PDF: 5 pages
Proc. SPIE 2101, Measurement Technology and Intelligent Instruments, (22 September 1993); doi: 10.1117/12.156384
Show Author Affiliations
Yang Zhao, Tsinghua Univ. (China)
Dacheng Li, Tsinghua Univ. (China)

Published in SPIE Proceedings Vol. 2101:
Measurement Technology and Intelligent Instruments
Li Zhu, Editor(s)

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