The use of Walsh functions in modulating pump light of high-spatial- resolution BOTDA with NRZ pulses

Mohd Saiful Dzulkefly Bin Zan, Tatsuya Tsumuraya, Tsuneo Horiguchi

研究成果: Conference contribution

2 引用 (Scopus)

抜粋

We have previously introduced phase modulation into pulsed pump of Brillouin Optical Time Domain Analysis (BOTDA) in order to obtain high spatial resolution. In this study, we propose to use Walsh functions in coding nonreturn-to-zero (NRZ) formatted pump pulses of the high-spatial-resolution BOTDA to increase signal-to-noise ratio (SNR). Contrary to previous reports, it is numerically and experimentally verified that the use of the Walsh functions in the high-spatial-resolution BOTDA allows the increase in SNR without deteriorating its spatial resolution expected. We demonstrate measurements with 1.5 dB improvement in SNR and with approximately 0.2 m spatial resolution.

元の言語English
ホスト出版物のタイトル22nd International Conference on Optical Fiber Sensors
DOI
出版物ステータスPublished - 2012 12 1
イベント22nd International Conference on Optical Fiber Sensors - Beijing, China
継続期間: 2012 10 152012 10 19

出版物シリーズ

名前Proceedings of SPIE - The International Society for Optical Engineering
8421
ISSN(印刷物)0277-786X

Conference

Conference22nd International Conference on Optical Fiber Sensors
China
Beijing
期間12/10/1512/10/19

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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  • これを引用

    Bin Zan, M. S. D., Tsumuraya, T., & Horiguchi, T. (2012). The use of Walsh functions in modulating pump light of high-spatial- resolution BOTDA with NRZ pulses. : 22nd International Conference on Optical Fiber Sensors [84219J] (Proceedings of SPIE - The International Society for Optical Engineering; 巻数 8421). https://doi.org/10.1117/12.968584