摘要
Theintensityandpositionofthecouplingpointsinhighbirefringence(Hi-Bi)fiberscanbedetectedeffectivelyusingdistributedpolarizationcoupling(DPC)detection.Thedetectionsensitivitycandecreaseduetomechanicalvibrationdisturbanceandenvironmentnoise.Thus,amethodbasedonempiricalmodedecompositionisproposedtodetectweakmodecouplingpoints.Thesimulationandexperimentalresultsillustratethattheproposedmethodcansuppressthenoiseeffectivelyandimprovesensitivitysignificantly.Themethodcanidentifycouplingpointsasweakas-60dBembeddedinnoiseautomaticallyandeffectively.ThealgorithmisapplicableforDPC,andtheexperimentalsensitivityisimprovedby10dB.
出版日期
2012年04月14日（中国期刊网平台首次上网日期，不代表论文的发表时间）
