Suppression of polarisation-induced signal fluctuation in optic distributed sensing system based on stimulated Brillouin scattering

J. Yang, Changyuan Yu, Z. Chen, J. Ng, X. Yang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

5 Citations (Scopus)


A new scheme capable of suppressing polarisation sensitivity in the Brillouin optical time domain analysis distributed sensing system is demonstrated. The polarisation-induced signal fluctuation is suppressed from >±300ε (which causes measurement to fail) to ±50ε by introducing a cost-effective polarisation diversity scheme on the pump light. Stable distributed strain measurement along a 1.2km singlemode fibre is achieved. This scheme needs no active component and the strain measurement time is only 3s.
Original languageEnglish
Pages (from-to)154-156
Number of pages3
JournalElectronics Letters
Issue number3
Publication statusPublished - 9 Feb 2009
Externally publishedYes

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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