Please use this identifier to cite or link to this item: http://localhost/handle/Hannan/626038
Title: A Distributed Brillouin Temperature Sensor Using a Single-Photon Detector
Authors: Lan Xia;Junhui Hu;Qingyuan Zhao;Jian Chen;Peiheng Wu;Xuping Zhang
subject: cascading fiber Bragg grating (FBG) filter|Rayleigh/Anti-Stokes ratio (RASR)|single-photon detector|spontaneous Brillouin scattering
Year: 2016
Publisher: IEEE
Abstract: We propose a distributed Brillouin temperature fiber sensor using a single-photon detector. In our scheme, the Rayleigh/anti-stokes ratio is used to measure the temperature information along the sensing fiber. A cascading fiber Bragg grating filter is employed to separate Brillouin anti-stokes signals from the backscattering Rayleigh light with a ~23 dB high rejection ratio. Benefiting from the high sensitivity of the single-photon detector, the system exhibits a dynamic range of 18 dB (corresponding to 90-km sensing length) with a measured temperature error of 1 °C without any optical amplification. Furthermore, the sensor shows a 1.2 m spatial resolution and 1.7 °C temperature error with an 8.5 dB dynamic range, which means the sensing length can be extended to 42.5 km. This scheme can simultaneously achieve a large dynamic range and a high spatial resolution.
URI: http://localhost/handle/Hannan/161771
http://localhost/handle/Hannan/626038
ISSN: 1530-437X
1558-1748
volume: 16
issue: 7
Appears in Collections:2016

Files in This Item:
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Title: A Distributed Brillouin Temperature Sensor Using a Single-Photon Detector
Authors: Lan Xia;Junhui Hu;Qingyuan Zhao;Jian Chen;Peiheng Wu;Xuping Zhang
subject: cascading fiber Bragg grating (FBG) filter|Rayleigh/Anti-Stokes ratio (RASR)|single-photon detector|spontaneous Brillouin scattering
Year: 2016
Publisher: IEEE
Abstract: We propose a distributed Brillouin temperature fiber sensor using a single-photon detector. In our scheme, the Rayleigh/anti-stokes ratio is used to measure the temperature information along the sensing fiber. A cascading fiber Bragg grating filter is employed to separate Brillouin anti-stokes signals from the backscattering Rayleigh light with a ~23 dB high rejection ratio. Benefiting from the high sensitivity of the single-photon detector, the system exhibits a dynamic range of 18 dB (corresponding to 90-km sensing length) with a measured temperature error of 1 °C without any optical amplification. Furthermore, the sensor shows a 1.2 m spatial resolution and 1.7 °C temperature error with an 8.5 dB dynamic range, which means the sensing length can be extended to 42.5 km. This scheme can simultaneously achieve a large dynamic range and a high spatial resolution.
URI: http://localhost/handle/Hannan/161771
http://localhost/handle/Hannan/626038
ISSN: 1530-437X
1558-1748
volume: 16
issue: 7
Appears in Collections:2016

Files in This Item:
File Description SizeFormat 
7359102.pdf956.43 kBAdobe PDFThumbnail
Preview File
Title: A Distributed Brillouin Temperature Sensor Using a Single-Photon Detector
Authors: Lan Xia;Junhui Hu;Qingyuan Zhao;Jian Chen;Peiheng Wu;Xuping Zhang
subject: cascading fiber Bragg grating (FBG) filter|Rayleigh/Anti-Stokes ratio (RASR)|single-photon detector|spontaneous Brillouin scattering
Year: 2016
Publisher: IEEE
Abstract: We propose a distributed Brillouin temperature fiber sensor using a single-photon detector. In our scheme, the Rayleigh/anti-stokes ratio is used to measure the temperature information along the sensing fiber. A cascading fiber Bragg grating filter is employed to separate Brillouin anti-stokes signals from the backscattering Rayleigh light with a ~23 dB high rejection ratio. Benefiting from the high sensitivity of the single-photon detector, the system exhibits a dynamic range of 18 dB (corresponding to 90-km sensing length) with a measured temperature error of 1 °C without any optical amplification. Furthermore, the sensor shows a 1.2 m spatial resolution and 1.7 °C temperature error with an 8.5 dB dynamic range, which means the sensing length can be extended to 42.5 km. This scheme can simultaneously achieve a large dynamic range and a high spatial resolution.
URI: http://localhost/handle/Hannan/161771
http://localhost/handle/Hannan/626038
ISSN: 1530-437X
1558-1748
volume: 16
issue: 7
Appears in Collections:2016

Files in This Item:
File Description SizeFormat 
7359102.pdf956.43 kBAdobe PDFThumbnail
Preview File