Fiber-wireless sensor system based on a power-over-fiber technique

Jin Wang; Jing Yan; Yanwen Ding; Yunqing Lu; Jian Jiang; Hongdan Wan; Ji Xu

doi:10.1117/1.OE.55.3.031104

25 September 2015 Fiber-wireless sensor system based on a power-over-fiber technique

Jin Wang, Jing Yan, Yanwen Ding, Yunqing Lu, Jian Jiang, Hongdan Wan, Ji Xu

Author Affiliations +

Optical Engineering, Vol. 55, Issue 3, 031104 (September 2015). https://doi.org/10.1117/1.OE.55.3.031104

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.

Citation Download Citation

Jin Wang, Jing Yan, Yanwen Ding, Yunqing Lu, Jian Jiang, Hongdan Wan, and Ji Xu "Fiber-wireless sensor system based on a power-over-fiber technique," Optical Engineering 55(3), 031104 (25 September 2015). https://doi.org/10.1117/1.OE.55.3.031104

Published: 25 September 2015

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