Differential Cross Spectrum Technique for Improving the Spatial Resolution of BOTDR Sensor

Mohd Saiful Dzulkefly Zan; Yuki Masui; Tsuneo Horiguchi

doi:10.1109/ICP.2018.8533208

Differential Cross Spectrum Technique for Improving the Spatial Resolution of BOTDR Sensor

Mohd Saiful Dzulkefly Zan, Yuki Masui, Tsuneo Horiguchi

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

13 Citations (Scopus)

Abstract

We propose a technique in BOTDR fiber sensor to generate a pair of pulsed probes via intensity modulation scheme for measuring distributed strain at high spatial resolution. The first probe consists of a long-and short duration of pulses separated by a short interval. The second probe only has the long pulse of the first probe. Introducing FFT in correlating the backscattered signals sampled by wide and narrow window functions for each probe gives narrow Brillouin spectrum width. The subtraction of the correlated signals obtained by the two probes results in high spatial resolution measurement. The intensity modulation makes it easier to generate the pair of pulsed probes having the same waveform of the long pulse and to obtain the results according to the measurement principle. We have achieved 0.2 m spatial resolution and 3.2 MHz Brillouin frequency accuracy in measuring a 350 m fiber.

Original language	English
Title of host publication	2018 IEEE 7th International Conference on Photonics, ICP 2018
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781538611876
DOIs	https://doi.org/10.1109/ICP.2018.8533208
Publication status	Published - 2018 Nov 12
Event	7th IEEE International Conference on Photonics, ICP 2018 - Langkawi, Kedah, Malaysia Duration: 2018 Apr 9 → 2018 Apr 11

Other

Other	7th IEEE International Conference on Photonics, ICP 2018
Country/Territory	Malaysia
City	Langkawi, Kedah
Period	18/4/9 → 18/4/11

Keywords

BOTDR
Brillouin frequency shift
Distributed fiber sensor

ASJC Scopus subject areas

Computer Networks and Communications
Signal Processing
Electrical and Electronic Engineering
Atomic and Molecular Physics, and Optics

Access to Document

10.1109/ICP.2018.8533208

Cite this

Differential Cross Spectrum Technique for Improving the Spatial Resolution of BOTDR Sensor. / Zan, Mohd Saiful Dzulkefly; Masui, Yuki; Horiguchi, Tsuneo.
2018 IEEE 7th International Conference on Photonics, ICP 2018. Institute of Electrical and Electronics Engineers Inc., 2018. 8533208.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Zan, MSD, Masui, Y & Horiguchi, T 2018, Differential Cross Spectrum Technique for Improving the Spatial Resolution of BOTDR Sensor. in 2018 IEEE 7th International Conference on Photonics, ICP 2018., 8533208, Institute of Electrical and Electronics Engineers Inc., 7th IEEE International Conference on Photonics, ICP 2018, Langkawi, Kedah, Malaysia, 18/4/9. https://doi.org/10.1109/ICP.2018.8533208

@inproceedings{f4d7a4cc578445c79e805ae789252670,

title = "Differential Cross Spectrum Technique for Improving the Spatial Resolution of BOTDR Sensor",

abstract = "We propose a technique in BOTDR fiber sensor to generate a pair of pulsed probes via intensity modulation scheme for measuring distributed strain at high spatial resolution. The first probe consists of a long-and short duration of pulses separated by a short interval. The second probe only has the long pulse of the first probe. Introducing FFT in correlating the backscattered signals sampled by wide and narrow window functions for each probe gives narrow Brillouin spectrum width. The subtraction of the correlated signals obtained by the two probes results in high spatial resolution measurement. The intensity modulation makes it easier to generate the pair of pulsed probes having the same waveform of the long pulse and to obtain the results according to the measurement principle. We have achieved 0.2 m spatial resolution and 3.2 MHz Brillouin frequency accuracy in measuring a 350 m fiber.",

keywords = "BOTDR, Brillouin frequency shift, Distributed fiber sensor",

author = "Zan, {Mohd Saiful Dzulkefly} and Yuki Masui and Tsuneo Horiguchi",

year = "2018",

month = nov,

day = "12",

doi = "10.1109/ICP.2018.8533208",

language = "English",

booktitle = "2018 IEEE 7th International Conference on Photonics, ICP 2018",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

address = "United States",

note = "7th IEEE International Conference on Photonics, ICP 2018 ; Conference date: 09-04-2018 Through 11-04-2018",

}

TY - GEN

T1 - Differential Cross Spectrum Technique for Improving the Spatial Resolution of BOTDR Sensor

AU - Zan, Mohd Saiful Dzulkefly

AU - Masui, Yuki

AU - Horiguchi, Tsuneo

PY - 2018/11/12

Y1 - 2018/11/12

N2 - We propose a technique in BOTDR fiber sensor to generate a pair of pulsed probes via intensity modulation scheme for measuring distributed strain at high spatial resolution. The first probe consists of a long-and short duration of pulses separated by a short interval. The second probe only has the long pulse of the first probe. Introducing FFT in correlating the backscattered signals sampled by wide and narrow window functions for each probe gives narrow Brillouin spectrum width. The subtraction of the correlated signals obtained by the two probes results in high spatial resolution measurement. The intensity modulation makes it easier to generate the pair of pulsed probes having the same waveform of the long pulse and to obtain the results according to the measurement principle. We have achieved 0.2 m spatial resolution and 3.2 MHz Brillouin frequency accuracy in measuring a 350 m fiber.

AB - We propose a technique in BOTDR fiber sensor to generate a pair of pulsed probes via intensity modulation scheme for measuring distributed strain at high spatial resolution. The first probe consists of a long-and short duration of pulses separated by a short interval. The second probe only has the long pulse of the first probe. Introducing FFT in correlating the backscattered signals sampled by wide and narrow window functions for each probe gives narrow Brillouin spectrum width. The subtraction of the correlated signals obtained by the two probes results in high spatial resolution measurement. The intensity modulation makes it easier to generate the pair of pulsed probes having the same waveform of the long pulse and to obtain the results according to the measurement principle. We have achieved 0.2 m spatial resolution and 3.2 MHz Brillouin frequency accuracy in measuring a 350 m fiber.

KW - BOTDR

KW - Brillouin frequency shift

KW - Distributed fiber sensor

UR - http://www.scopus.com/inward/record.url?scp=85058466366&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85058466366&partnerID=8YFLogxK

U2 - 10.1109/ICP.2018.8533208

DO - 10.1109/ICP.2018.8533208

M3 - Conference contribution

AN - SCOPUS:85058466366

BT - 2018 IEEE 7th International Conference on Photonics, ICP 2018

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 7th IEEE International Conference on Photonics, ICP 2018

Y2 - 9 April 2018 through 11 April 2018

ER -

Differential Cross Spectrum Technique for Improving the Spatial Resolution of BOTDR Sensor

Abstract

Other

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this