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Proceedings Paper

Strain measurement based on multimode fiber ring-down spectroscopy
Author(s): Huiye Qiu; Guozhong Lai; Yufei Wang; Yuxia Su
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Paper Abstract

A multimode fiber-loop ring-down spectroscopy for strain measurement is presented. With this technique, strain measurement is achieved in a time domain by measuring the ring-down time. The prototype of the sensor consists of a pulsed VCSEL laser diode, two multimode fiber couplers, a section of multimode fiber loop, photodetector, data acquisition card and signal processing. Experimental results show that the ring-down time has a good linear response to strain in the range from 534.2με to 1013.7με and the strain resolution is as small as 0.338με.

Paper Details

Date Published: 24 August 2009
PDF: 4 pages
Proc. SPIE 7381, International Symposium on Photoelectronic Detection and Imaging 2009: Material and Device Technology for Sensors, 73810O (24 August 2009); doi: 10.1117/12.833432
Show Author Affiliations
Huiye Qiu, Longyan Univ. (China)
Guozhong Lai, Longyan Univ. (China)
Yufei Wang, Longyan Univ. (China)
Yuxia Su, Longyan Univ. (China)


Published in SPIE Proceedings Vol. 7381:
International Symposium on Photoelectronic Detection and Imaging 2009: Material and Device Technology for Sensors

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