《OTN基礎(chǔ)知識(shí)》課件

NewTechnologiesofOpticalFiberCommunicationNewTechnologiesofOpticalFiberCommunication2005.5.31.Tel:+86-10-62281173-603E-mail:yjzhang@KeyLabofOpticalCommunicationandLightwaveTechnologies(BeijingUniversityofPostsandTelecommunications),MinistryofEducation,P.R.ChinaDr.YongjunZhangDr.KunXu1精選課件pptCourseOutlineIntroduction(2)PhotonicCrystalanditsApplicationinOFC(4)FunctionalDevicesandAllOpticalSignalProcessing(6)AllOpticalLogicOperation(2)OTDManditsKeyTechnologies(2)HighSpeedDWDManditsKeytechnologies(8)O-CDMAanditsNetworkApplication(2)OANandFreeSpaceOpticalCommunication(2)

KeyTechnologiesintheNextGenerationON(6)YourPresentationCourses(2-4)2精選課件ppt光網(wǎng)絡(luò)的發(fā)展全光網(wǎng)絡(luò)ASONMSTPRWAOBSIPoverWDM?信息網(wǎng)絡(luò)的未來內(nèi)容3精選課件ppt電信運(yùn)營業(yè)發(fā)展現(xiàn)狀需求不繼導(dǎo)致電信運(yùn)營業(yè)陷入低迷期基礎(chǔ)網(wǎng)絡(luò)建設(shè)速度放慢降低成本、增加收入、開發(fā)新業(yè)務(wù)成為網(wǎng)絡(luò)建設(shè)重點(diǎn)行業(yè)衰退，運(yùn)營商投資趨于理性4精選課件pptTDMATMIP運(yùn)營商建設(shè)思路長途波分干線呈現(xiàn)“容量”、“距離”、“性能”三個(gè)方面的升級(jí)對(duì)成熟網(wǎng)絡(luò)的評(píng)估、優(yōu)化ASON\智能光網(wǎng)絡(luò)進(jìn)入試驗(yàn)性階段光網(wǎng)絡(luò)建設(shè)熱點(diǎn)的轉(zhuǎn)變光網(wǎng)絡(luò)從“關(guān)注技術(shù)性能”到“關(guān)注網(wǎng)絡(luò)適應(yīng)性”＋城域網(wǎng)對(duì)新業(yè)務(wù)的適配性5精選課件ppt光傳送網(wǎng)的技術(shù)發(fā)展趨勢(shì)TDM

SpeedCrosscapacityDistanceServicesIntelligenceOCS由最典型的宣傳口號(hào)為“光因特網(wǎng)”、“智能光網(wǎng)絡(luò)”……轉(zhuǎn)為最典型的宣傳口號(hào)為“optimizeyournetwork”特征時(shí)間6精選課件ppt干線建網(wǎng)的關(guān)注點(diǎn)：“容量升級(jí)、距離升級(jí)、性能升級(jí)”16波32/40波40波，可升級(jí)到80/160波。ELH：單跨能力強(qiáng)，可達(dá)150KM以上；無電中繼傳輸能力較強(qiáng)，可達(dá)1000KM以上ULH：單跨能力強(qiáng)，可達(dá)150KM以上；無電中繼傳輸能力非常強(qiáng)，最長可達(dá)4000KM，超長大環(huán)應(yīng)用LH：單跨能力弱，無電中繼傳輸能力小于640KM內(nèi)置光譜分析單元：遠(yuǎn)程監(jiān)測(cè)光譜性能內(nèi)置OTDR：實(shí)現(xiàn)光纜質(zhì)量在線監(jiān)測(cè)AGC&ALC、功率預(yù)均衡：自適應(yīng)外界因素導(dǎo)致的光纖衰耗變化；利于更多波長、更長距離傳送距離升級(jí)性能升級(jí)容量升級(jí)OSC可傳送PDH時(shí)鐘全業(yè)務(wù)接入：支持GE、2.5G、10G、45M-1.25G、TMUX7精選課件ppt400G800G1600GInterleaverC/L

FilterOAC-BandL-Band1200G隨著技術(shù)的進(jìn)步和成本的不斷降低，升級(jí)的成本會(huì)越來越低容量在線升級(jí)8精選課件ppt多種技術(shù)實(shí)現(xiàn)距離升級(jí)帶內(nèi)FEC帶外FEC增強(qiáng)型FECRaman放大技術(shù)SuperWDM優(yōu)化OSNR>7~9dB優(yōu)化OSNR>6dB優(yōu)化OSNR>5~6dB優(yōu)化OSNR>2dB優(yōu)化OSNR>6dB帶內(nèi)/帶外FEC、增強(qiáng)FEC、Raman放大技術(shù)、SuperWDM技術(shù)均為長距離無電中繼傳輸系統(tǒng)的商用技術(shù)。9精選課件pptLong-TermNetworkEvolutionTrendsWDMMuxPBXATM/FRIPPSTN/ESSIP/EtthernetIP-PBXATM/FRIP/Ethernet/MPLSVoIP/SSSONET/SDHADMDWDMMuxOTNMuxPBXATM/FRPSTN/ESSIPestablishesastheidealtechnologyforservicecreation&thecontrolplaneEthernetemergesasthemainL2CLEservicesinterfaceforbothbest-effortandflexibleQoS(e.g.,elastic)dataapplicationsSDHblendspackettransportaspectsofEthernet/MPLStechnologyandmaintainstransportvs.servicenetworksegregationDWDMremainsasathininfrastructurelayernetwork(forvirtualfibers)ConvergedMulti-ServiceNGSONET/SDHADMTraditionalSONET/SDHADMLegacyTodayFutureASONMPLS10精選課件ppt光傳送網(wǎng)絡(luò)優(yōu)化的三個(gè)目標(biāo)提高安全穩(wěn)定性提高維護(hù)效率優(yōu)化資源利用率投資收益11精選課件ppt最終實(shí)現(xiàn)光網(wǎng)絡(luò)與客戶層整個(gè)網(wǎng)絡(luò)端到端快速業(yè)務(wù)服務(wù)和動(dòng)態(tài)帶寬管理，全網(wǎng)智能化10G或2.5G155/62210GOCSOMTOEA提供Mesh網(wǎng)提高業(yè)務(wù)生存性MeshMeshOVPN提供OVPN、流量工程、UNI、支持SLA、全網(wǎng)端到端服務(wù)網(wǎng)絡(luò)的逐步智能化12精選課件ppt全光網(wǎng)絡(luò)的提出和發(fā)展光纖通信技術(shù)已經(jīng)經(jīng)歷了幾個(gè)重要的發(fā)展階段：1.單波長點(diǎn)對(duì)點(diǎn)傳輸2.WDM點(diǎn)對(duì)點(diǎn)傳輸3.WDM全光網(wǎng)13精選課件pptTraditionalStaticNetworkPoint-to-Point

DWDMIPRouterMeshSourceDestinationBATraditionally,theopticallayerofthenetworkhasbeenviewedasasimpletransportmedium.DWDMsystemsweredeployedonapoint-to-pointbasis,Trafficformsourcetodestinationmustbeprocessedinelectricaldomainatintermediatenodes--------Electronicbottleneck14精選課件pptWDM全光網(wǎng)概念WDM全光網(wǎng)以光處理節(jié)點(diǎn)代替原有的電處理節(jié)點(diǎn)，信息進(jìn)入光網(wǎng)絡(luò)層后，始終以光的形式存在，直至到達(dá)其目的接入節(jié)點(diǎn)處才進(jìn)行光/電轉(zhuǎn)換。15精選課件pptSourceDestinationBADynamicNetwork

intelligenceSwitchedOpticalNetworkIPRouterDynamicMeshWithOXCs,wecandynamicallysetupanall-opticaltransparentlightpathbetweensourcenodesanddestinationnodeswhenneeded.Datacarriedontheselightpathsavoidelectronicconversionorprocessingatintermediatenodes,therebyallevi