A new electrical signal configuration for modulating pump light of coded discrete-phase shift pulse-BOTDA

M. S.D.B. Zan, T. Horiguchi

研究成果: Conference contribution

抄録

Distributed optical fiber sensors by using Brillouin optical time-domain analysis (BOTDA) have been developed extensively by many researchers. Coding pulsed pump light of the BOTDA is an effective way to improve the signal-to-noise ratio (SNR). This article reports a new way to configure electrical signals that are amplified by an AC-coupled highspeed amplifier and then fed into an electro-optic modulator to generate coded pump light. The new configuration caused little distortion of the amplified electrical signals and consequently produced coded pump light with a good waveform with the modulator. The optical SNR of the coded BOTDA signals achieved by the new configuration was about 1dB better than that by a conventional way for 32 bit-length code.

本文言語English
ホスト出版物のタイトルICP 2012 - 3rd International Conference on Photonics 2012, Proceedings
ページ294-298
ページ数5
DOI
出版ステータスPublished - 2012 12 1
イベント3rd International Conference on Photonics, ICP 2012 - Penang, Malaysia
継続期間: 2012 10 12012 10 3

出版物シリーズ

名前ICP 2012 - 3rd International Conference on Photonics 2012, Proceedings

Conference

Conference3rd International Conference on Photonics, ICP 2012
国/地域Malaysia
CityPenang
Period12/10/112/10/3

ASJC Scopus subject areas

  • 原子分子物理学および光学

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