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Proceedings Paper

Self-mixing Doppler effect in an EDFR laser and its application to particle size measurement
Author(s): Mingyi Liu; Ming Wang
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Paper Abstract

In this paper, a packaged erbium-doped fiber amplifier (EDFA) is integrated into a fiber ring to form an erbium-doped fiber ring (EDFR) laser which is applied to measure the particle size based on the self-mixing Doppler effect. A detailed analysis is addressed to introduce the measurement principle, and the obtained results demonstrate that the diameter of the Brownian particles in water can be measured by detect the variations of the intensity and frequency of the fiber laser. This technique can be used in biology, process engineering and chemistry.

Paper Details

Date Published: 26 November 2007
PDF: 5 pages
Proc. SPIE 6830, Advanced Sensor Systems and Applications III, 68301C (26 November 2007); doi: 10.1117/12.756061
Show Author Affiliations
Mingyi Liu, Nanjing Normal Univ. (China)
Hohai Univ. (China)
Ming Wang, Nanjing Normal Univ. (China)

Published in SPIE Proceedings Vol. 6830:
Advanced Sensor Systems and Applications III
Yun-Jiang Rao; Yanbiao Liao; Gang-Ding Peng, Editor(s)

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