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Proceedings Paper

Wireless fiber laser sensor combining photonic generation beat frequency demodulation technology
Author(s): Shengchun Liu; Rong Gu; Xiujuan Yu; Zuowei Yin; Xiangfei Chen
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Paper Abstract

A simple wireless-fiber laser sensor is proposed base on directly photonic generation of microwave beat signal. In this scheme, a multi-longitudinal modes fiber laser is formed by two fiber Bragg gratings and a section of erbium-doped fiber. Two same 2G-GSM mobile antennas are used as wireless transmitter and receiver. By this method, the real-time monitoring of fiber laser sensors can be achieved through over ultra-long distance. This technique offers a simple, all-electrical and cheap way for fiber sensor information accessing wireless net. The experiment result shows the root mean square deviations of the sensor are about 4.7 με and 6.7 με at 2.38 GHz before and after wireless transmission, respectively.

Paper Details

Date Published: 29 November 2011
PDF: 6 pages
Proc. SPIE 8311, Optical Sensors and Biophotonics III, 83112D (29 November 2011); doi: 10.1117/12.904625
Show Author Affiliations
Shengchun Liu, Heilongjiang Univ. (China)
Nanjing Univ. (China)
Rong Gu, Nanjing Univ. (China)
Xiujuan Yu, Heilongjiang Univ. (China)
Zuowei Yin, Nanjing Univ. (China)
Xiangfei Chen, Nanjing Univ. (China)

Published in SPIE Proceedings Vol. 8311:
Optical Sensors and Biophotonics III
Jürgen Popp, Editor(s)

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