摘要
Thetransmissionspectrumofthecoatedphase-shiftedlong-periodfibergratings(LPFGs)withsingleandmultiplephaseshiftsisanalyzedbythecoupled-modetheoryandthetransfermatrixmethod,andtheinfluencesofthefilmparametersonthespectralcharacteristicsarealsostudied.ItisshownthattheseparameterswillaffecttheLPFGfilteringcharacteristics.Thelosspeakoftransmissionspectrumdecreaseswiththeincreaseoffilmthickness,andthepeakpositionshiftswiththefilmrefractiveindex.Comparedwiththenon-coatedphase-shiftedLPFG,thecoatedonehasthesimilardesirablefilteringcharacteristics,andithasaflexibleabilitytoadjustthetransmissionproperties.
出版日期
2009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)