Phase-coded Brillouin Optical Correlation Domain Analysis based on Amplitude Modulation

Dexin Ba, Yue Li, Jialiang Yan, Xiaopei Zhang, Yongkang Dong

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A phase-coded Brillouin optical correlation domain analysis (BOCDA) based on amplitude modulation was proposed. Unlike the conventional phase-coded BOCDA which suffers from non-rectangular phase transitions, the proposed phase coding based on amplitude modulation can realize perfect phase switches between 0 and π with zero-width edges. Numerical simulations and experimental results prove that it can effectively suppress the Brillouin amplification in the off-peak positions. In experiment, a 2-mm spatial resolution sensing is realized using only a 20-GHz bandwidth amplitude modulator.

Original languageEnglish
Title of host publicationOptical Fiber Sensors, OFS 2020
PublisherOptica Publishing Group (formerly OSA)
ISBN (Electronic)9781557523075
StatePublished - 2020
Externally publishedYes
Event27th International Conference on Optical Fiber Sensors, OFS 2020 - Washington, United States
Duration: 8 Jun 202012 Jun 2020

Publication series

NameOptics InfoBase Conference Papers
ISSN (Electronic)2162-2701

Conference

Conference27th International Conference on Optical Fiber Sensors, OFS 2020
Country/TerritoryUnited States
CityWashington
Period8/06/2012/06/20

Bibliographical note

Publisher Copyright:
© 2021 The Author(s).

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