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Types
HotSpots
Factors
Layout
Network
HotSpots
Types
Factors
Layout
HotSpotsinDesignConsiderations
MaximizetheProfit(利益最大化)
IPoverWDM
InsteadofusingIPoverSDHoverWDM,directIPoverWDMisemployed
OTN(光传送网)
OpticalCross-connection
ElectronicCross-connection
GMPLS
Ultralonghaulandsuperbandwidth
10G,25G,40G
Types
Layout
HotSpots
Factors
NetworkClassification
ClassifiedbyChannelSpacing
Wide:WWDM
Coarse:CWDM20nm
Narrow:NWDM
Dense:DWDM100MHz,-
ClassifiedbyInterfaces
Open
Half-Open
Integrated
Classifiedby
ChannelNumbers
ChannelSpeed
Layout
Types
HotSpots
Factors
ATypicalWDMLayout
OSC/ESC:Optical/electricalSupervisoryChannel
OTU:OpticalTransportUnit(光转发单元)
Attenuation
AbsorptionandScattering
Dispersion
Modal
Waveguide
Material
PMD
Signal-to-Noiseratio
ASEinEDFA
AccumulatedNoise
NonlinearEffects
SPM,XPM,FWM,SBS,….
Factors
Layout
HotSpots
Types
EffectsonWDMbyAnumberofFactors
LearningNetworkDesignby
Gainingaunderstandingofbuildingblocks
Designidea->setup->performancetesting
Righttoolforrightjob:Optisystems
Practice:
In-classdesign40%
Homework30%
Final30%
What
When
How
Grade
Whatarewegoingtodointhiscourse
Coverage
Simple
Add-on
Modified
Whatarewegoingcover
LinearDistortion
Attenuation-BER
DCF
PMD
WDM,DWDM,PON
EDFA,Raman
NonlinearDistortion
FWM,SBS
Network
OCDMA,OFDM
40G,100G,
Coverage
Simple
Add-on
Modified
Whatfortoday?
BasicP-to-P
FamiliaritywithOptisystems
Parameterselection
Howtoevaluateyourresult
BER
Simplicity
Totalcost:usingBOM
Designprocess
Analyzeyourtask
Defineyourneed:
capacity,BER,cost,…
Coverage
Simple
Add-on
Modified
AlookatBERagain
Definition:
ThenumberofBiterrorsthatoccur
withinthespaceofonesecond.
Range:10-9to10-12
ThehighertheDataTransmissionrate
thegreaterthestandard.
DS-1()signalisconsidered
acceptablewithaBERof10-6,
OC-3()signalrequiresaBERof
nomorethan10-12.