Hybrid TDM/WDM based fiber-optic sensor network for perimeter intrusion detection

Xiaolei Li; Qizhen Sun; Zhifeng Sun; Jianghai Wo; Manliang Zhang; Deming Liu

doi:10.1117/12.886093

17 May 2011 Hybrid TDM/WDM based fiber-optic sensor network for perimeter intrusion detection

Xiaolei Li, Qizhen Sun, Zhifeng Sun, Jianghai Wo, Manliang Zhang, Deming Liu

Proceedings Volume 7753, 21st International Conference on Optical Fiber Sensors; 77532V (2011) https://doi.org/10.1117/12.886093
Event: 21st International Conference on Optical Fibre Sensors (OFS21), 2011, Ottawa, Canada

Abstract

A distributed fiber-optic sensor system is proposed and demonstrated for long-distance intrusion-detection, which employs the hybrid time/wavelength division multiplexing (TDM/WDM) architecture. By utilizing 20 time zones and 6 wavelengths, the system contains up to 120 fiber sensing units (OSU), of which the distributed sensing distance is from 0 to 500m. So the whole sensing distance of this system could reach 60 km. The system has been demonstrated to run stably exceed six months with the false alarm rate of less than 4%.

Citation Download Citation

Xiaolei Li, Qizhen Sun, Zhifeng Sun, Jianghai Wo, Manliang Zhang, and Deming Liu "Hybrid TDM/WDM based fiber-optic sensor network for perimeter intrusion detection", Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 77532V (17 May 2011); https://doi.org/10.1117/12.886093

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