摘要
Thispapercomprehensivelyinvestigatesthepropertiesofselfphasemodulationbasedopticaldelaysystemsconsistingofdispersioncompensationfibreandhighlynonlinearfibres.Itresearchesintotheimpactsofpowerlevellaunchedintohighlynonlinearfibres,conversionwavelength,dispersionslope,modulationformatandopticalfilterbandwidthontheoverallperformanceofopticaldelaysystems.Theresultsrevealthat,ifthepowerlaunchedintohighlynonlinearfibresisfixed,thetimedelaygenerallyvarieslinearlywiththeconversionwavelength,butjumpsintermittentlyatsomeconversionwavelengths.However,thetimedelayvariessemi-periodicallywiththepowerlaunchedintohighlynonlinearfibres.Thedispersionslopeofhighlynonlinearfibreshassignificantinfluenceonthetimedelay,especiallyforthenegativedispersionslope.Thetimedelaydifferswithmodulationformatsduetothedifferentcombinedinteractionofnonlinearityanddispersioninfibres.Thebandwidthoftheopticalfiltersalsogreatlyaffectsthetimedelaybecauseitdeterminesthebandwidthofthepassedsignalintheselfphasemodulationbasedtimedelaysystems.Theoutputsignalqualityoftheoveralltimedelaysystemsdependsontheconversionwavelengthandinputpowerlevel.Theoptimisationofthepowerlevelandconversionwavelengthtoprovidethebestoutputsignalqualityismadeattheendofthispaper.
出版日期
2010年11月21日（中国期刊网平台首次上网日期，不代表论文的发表时间）
