《光纤通信课程设计》课件：Class1-03.pptVIP

Fiber Optic Network Design TypesHot SpotsFactorsLayoutNetwork Hot SpotsTypesFactorsLayoutHot Spots in Design ConsiderationsMaximize the Profit (利益最大化）?IP over WDMInstead of using IP over SDH over WDM, direct IP over WDM is employedOTN (光传送网）Optical Cross-connectionElectronic Cross-connectionG.709GMPLSUltra long haul and super bandwidth10G, 25G, 40G TypesLayoutHot SpotsFactorsNetwork ClassificationClassified by Channel SpacingWide : WWDM Coarse: CWDM 20nmNarrow: NWDMDense: DWDM 100MHz, 0.2-1.2nmClassified by InterfacesOpenHalf-OpenIntegratedClassified by Channel NumbersChannel Speed LayoutTypesHot SpotsFactorsA Typical WDM LayoutOSC/ESC: Optical/electrical Supervisory ChannelOTU: Optical Transport Unit (光转发单元) AttenuationAbsorption and ScatteringDispersionModalWaveguideMaterialPMDSignal-to-Noise ratioASE in EDFAAccumulated NoiseNonlinear EffectsSPM, XPM, FWM, SBS,….FactorsLayoutHot SpotsTypesEffects on WDM by A number of Factors Learning Network Design by Gaining a understanding of building blocksDesign idea- setup- performance testingRight tool for right job: OptisystemsPractice: In-class design 40%Homework 30%Final 30%WhatWhenHowGradeWhat are we going to do in this course CoverageSimpleAdd-onModifiedWhat are we going coverLinear DistortionAttenuation-BERDCFPMDWDM, DWDM, PONEDFA, RamanNonlinear DistortionFWM, SBSNetworkOCDMA, OFDM40G, 100G, CoverageSimpleAdd-onModifiedWhat for today? Basic P-to-PFamiliarity with OptisystemsParameter selectionHow to evaluate your resultBERSimplicityTotal cost: using BOMDesign processAnalyze your taskDefine your need: capacity, BER, cost,… CoverageSimpleAdd-onModifiedA look at BER again Definition: The number of Bit errors that occur within the space of one second. Range: 10-9 to 10-12 The higher the Data Transmission rate the greater the standard. DS-1 (1.544 Mbit/s) signal is considered acceptable with a BER of 10-6, OC-3 (155.52 Mbit/s) signal requires a BER of no more than 10-12.