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

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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish
Title of host publicationICP 2012 - 3rd International Conference on Photonics 2012, Proceedings
Pages294-298
Number of pages5
DOIs
Publication statusPublished - 2012 Dec 1
Event3rd International Conference on Photonics, ICP 2012 - Penang, Malaysia
Duration: 2012 Oct 12012 Oct 3

Publication series

NameICP 2012 - 3rd International Conference on Photonics 2012, Proceedings

Conference

Conference3rd International Conference on Photonics, ICP 2012
CountryMalaysia
CityPenang
Period12/10/112/10/3

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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    Zan, M. S. D. B., & Horiguchi, T. (2012). A new electrical signal configuration for modulating pump light of coded discrete-phase shift pulse-BOTDA. In ICP 2012 - 3rd International Conference on Photonics 2012, Proceedings (pp. 294-298). [6379861] (ICP 2012 - 3rd International Conference on Photonics 2012, Proceedings). https://doi.org/10.1109/ICP.2012.6379861