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; H. Y. Tam; C. Lu

doi:10.1109/JPHOT.2012.2226710

IEEE Photonics Journal (Jan 2012)

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,
H. Y. Tam,
C. Lu

Affiliations

Y. Mao: <formula formulatype="inline"><tex Notation="TeX">$^{1}$</tex></formula>Department of Electronic and Information Engineering , The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China
N. Guo: Department of Electronic and Information Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China
K. L. Yu: Department of Electronic and Information Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China
H. Y. Tam: <formula formulatype="inline"><tex Notation="TeX">$^{3}$</tex></formula>Department of Electrical Engineering, The Hong Kong Polytechnic University, Hong Kong SAR, China
C. Lu: Department of Electronic and Information Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China

DOI: https://doi.org/10.1109/JPHOT.2012.2226710
Journal volume & issue: Vol. 4, no. 6
pp. 2243 – 2248

Abstract

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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.

Published in IEEE Photonics Journal

ISSN: 1943-0655 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Engineering (General). Civil engineering (General): Applied optics. Photonics; Science: Physics: Optics. Light
Website: http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=4563994

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