1-cm-spatial-resolution brillouin optical time-domain analysis based on bright pulse brillouin gain and complementary code

Y. Mao; N. Guo; K. L. Yu; Hwa Yaw Tam; Chao Lu

doi:10.1109/JPHOT.2012.2226710

1-cm-spatial-resolution brillouin optical time-domain analysis based on bright pulse brillouin gain and complementary code

Y. Mao, N. Guo, K. L. Yu, Hwa Yaw Tam, Chao Lu

The Hong Kong Polytechnic University

Research output: Journal article publication › Journal article › Academic research › peer-review

45 Citations (Scopus)

Abstract

We studied the impact of optical pulse coding techniques on Brillouin optical time-domain analysis (BOTDA) systems experimentally. The results show that complementary-coding-based schemes can provide significant enhanced signal-to-noise ratio (SNR) to the BOTDA system. Using complementary coding, the average time can be reduced significantly and so does the measurement time. The complementary-coded pulses with individual pulse duration of 0.1 ns allowed us to realize temperature sensing over 50 m of single-mode fiber with 1-cm spatial resolution.

Original language	English
Article number	6341029
Pages (from-to)	2243-2248
Number of pages	6
Journal	IEEE Photonics Journal
Volume	4
Issue number	6
DOIs	https://doi.org/10.1109/JPHOT.2012.2226710
Publication status	Published - 18 Dec 2012

Keywords

Brillouin gain spectrum
optic fiber sensors
optical pulse coding
time-domain analysis

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

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10.1109/JPHOT.2012.2226710

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AU - Lu, Chao

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AB - We studied the impact of optical pulse coding techniques on Brillouin optical time-domain analysis (BOTDA) systems experimentally. The results show that complementary-coding-based schemes can provide significant enhanced signal-to-noise ratio (SNR) to the BOTDA system. Using complementary coding, the average time can be reduced significantly and so does the measurement time. The complementary-coded pulses with individual pulse duration of 0.1 ns allowed us to realize temperature sensing over 50 m of single-mode fiber with 1-cm spatial resolution.

KW - Brillouin gain spectrum

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1-cm-spatial-resolution brillouin optical time-domain analysis based on bright pulse brillouin gain and complementary code

Abstract

Keywords

ASJC Scopus subject areas

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