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Optical Engineering

Fiber-wireless sensor system based on a power-over-fiber technique
Author(s): Jin Wang; Jing Yan; Yanwen Ding; Yunqing Lu; Jian Jiang; Hongdan Wan; Ji Xu
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Paper Abstract

A fiber-wireless sensor system based on a power-over-fiber technique is developed to offer a flexible, distributed sensing ability over a middle distance, especially under environments that are sensitive to electromagnetic interference. In this system, the optical energy of a high-power laser in the base station is transmitted via a fiber and then converted into electrical energy by a photovoltaic power converter (PPC) in the remote unit. This optically power-supplied remote unit operates as the coordinator in the wireless sensor network (WSN) and exchanges the sensing information with the base station via another fiber. In our demonstration system, the sensing information can be collected by a WSN 2 km away and be transmitted back. In order to improve the power supply ability of PPC, a maximum power point tracking technique is applied. More than 80% of PPC’s maximum output power can be obtained. Moreover, to reduce the power consumption of the remote unit and the sensor nodes, a simple and stable low-power communication protocol is designed.

Paper Details

Date Published: 25 September 2015
PDF: 4 pages
Opt. Eng. 55(3) 031104 doi: 10.1117/1.OE.55.3.031104
Published in: Optical Engineering Volume 55, Issue 3
Show Author Affiliations
Jin Wang, Nanjing Univ. of Posts and Telecommunications (China)
Jing Yan, Nanjing Univ. of Posts and Telecommunications (China)
Yanwen Ding, Nanjing Univ. of Posts and Telecommunications (China)
Yunqing Lu, Nanjing Univ. of Posts and Telecommunications (China)
Jian Jiang, Nanjing Univ. of Posts and Telecommunications (China)
Hongdan Wan, Nanjing Univ. of Posts and Telecommunications (China)
Ji Xu, Nanjing Univ. of Posts and Telecommunications (China)


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