色散平坦光子晶體光纖在光通信中的應(yīng)用.pdf

1、學(xué)科門類王堂／。2驢單位代碼!Q!塑密級(jí)——萄蓋孬乏謦纜碩士研究生學(xué)位論文論文題目：魚墼王塑糞壬曼篳堂塹壟光通信中的應(yīng)用研究指導(dǎo)教學(xué)科專研究方申請(qǐng)學(xué)位級(jí)生墅堡師墮塹墮壑堡業(yè)，堂堂三堡向堂塹望堡皇堂鎏墊壟別堡主二oo五年四月南京郵IU學(xué)院傾L學(xué)位論文摘贊AbstractOpticalfibercommunicationsystemshavebecomethebackbonenetworkinthefastdevelopmentinform

2、ationsocietyWithmaturationofdensewavelengthdivisionmultiplexing(DWDM)technologyopticalfibercommunicationisevolvingtowardssuperhighspeedandsuperlargecapacityInhighspeedDWDMsystem、developingnovelfiberhasbecomeimportantfoun

3、dationofnextgenerationtelecomnetworkHowever，traditionalfibersaresubjecttotheinfluenceoffiberlosses，dispersion，nonlineareffectandSOonThusresearchershavebeguntodevelopnovelfibersThephotonicbandgapfibers(PBGFs)thatwewillmai

4、nlydiscussedinthispaperareoneofthenovelfiberspeoplearepayingmoreandmoreattentiontOIthasuniquestructureswithaperiodicalchangeofrefractionindexinthecladdingandadefectinthecorePBGFshavemanysignificantpropertiescontrollabled

5、ispersion，verylowlossesandnonlinearityintheoryAllthesemakePBGFsagoodchoiceasthemainmediumoftheopticalnetworkinthefutureDuetoitscomplexgeometryitishardtoanalysisPBGFspreciselyintheorySOnumericalanalysismethodshavetObeused

6、InthispaperthepropertiesofairguidinganddispersionofPBGFsarediscussedwiththecombinationoftheplanewavesmethod(PWM)andthefinitedifferencetime—domainmethod(FDTD)Weanalyzetheinfluenceonthephotonicbandgapbychangingtheperiodica

7、lrefractionindexinthecladdingofPBGFsTheaffectofsurfacemodeisdiscussed，whichprovidetheoryfoundationforappropriatelychoosingthestructureofphotoniccrystal，F(xiàn)inallywestudiedtheapplicationsofPBGFsinDWDMsystem，whichCanimproveth

8、etransmissiondistanceandcapacityofcommunicationfiberBecauseofremarkablepropertiesofPCFitwouldhaveimportantapplicationprosperityintelecommunicationregionKeyWords：PhotonicBandGapFibers(PBGFs)，PhotonicBandGap(PBG)，DefectMod