Super-PON -...
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Super-PON Scale Fully Passive Optical Access Networks to Longer Reaches and to a Significantly Higher Number of Subscribers Claudio DeSanti Liang Du Cedric Lam Joy Jiang
Transcript of Super-PON -...
Super-PONScaleFullyPassiveOpticalAccessNetworkstoLongerReachesand
toaSignificantlyHigherNumberofSubscribers
ClaudioDeSantiLiangDuCedricLamJoyJiang
ClaudioDeSanti 2
Agenda
• Super-PONIdea• WhySuper-PON?• Super-PONPMD
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IEEE802.3EPONArchitecture
Upto20Km
Upto64
IEEE802.3Clause64
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Super-PONScalability
Upto50Km
Upto1024PassiveOpticalNetwork
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OLT
ONU1
ONU2
ONUn
CyclicA
WG
ONU1
ONU2
ONUn
ONU1
ONU2
ONUn
... m
FromHere…
OLT
ONU1
ONU2
ONUn
OLT
ONU1
ONU2
ONUn
OLT
ONU1
ONU2
ONUn
…ToHere
DWDM
... q
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10G-EPONl1OLT
10G-EPONl2OLT
10G-EPONlmOLT
…
MUX
DMUX
……
booster
preamp
BANDMUX
ONU1
ONU2
ONUn
CyclicA
WG
ONU1
ONU2
ONUn
ONU1
ONU2
ONUn
... m
• Amplificationenableslongerreach(target:upto50Km)• DWDMenablesmoresubscribers(target:n=64xm=16=1024)• Theopticalnetworkisfullypassive
CO
TheFullPicture
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10G-EPONl1OLT
10G-EPONl2OLT
10G-EPONlmOLT
…
MUX
DMUX
……
booster
preamp
BANDMUX
ONU1
ONU2
ONUn
CyclicA
WG
ONU1
ONU2
ONUn
ONU1
ONU2
ONUn
... m
CO
Super-PONArchitecture– Residential
NewPMD:Duplex,Power,l, …
NewPMD:Power,l, …
Power,l
MUX/AmplifierPower,l
FSRs,l
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10Gl1Pt2Pt
10Gl2Pt2Pt
10GlqPt2Pt
…
MUX
DMUX
……
booster
preamp
BANDMUX
CO
Super-PONArchitecture– PointtoPointSupport
NewPMD:Duplex,Power,l, …
NewPMD:Power,l, …Power,l
MUX/Amplifier
FSRs,l
CyclicA
WG
... q ...
P2P1
P2P2
P2Pq
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ONU1
ONU2
ONUn
CyclicA
WG
ONU1
ONU2
ONUn
ONU1
ONU2
ONUn
... m+q ...
P2P1
P2P2
P2Pq
10G-EPONl1OLT
10G-EPONl2OLT
10G-EPONlmOLT
…
……
BANDMUX
10Gl1Pt2Pt
10Gl2Pt2Pt
10GlqPt2Pt
…
……
booster
preamp
MUX
DMUX
Super-PONArchitecture– Complete
CO
MUX/Amplifier
A:upto40Km B:upto20Km
A+B≤ 50Km
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Agenda
• Super-PONIdea• WhySuper-PON?• Super-PONPMD
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ConventionalPONCoverage
CO CO
CO
CO
CO
CO
20Km 50Km
CO
CO
CO
CO
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Super-PONCoverage
CentralizedCOCO
20Km
• Largerservingarea• FewernumberofCOs• Smallerfiberbundles
50Km
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RealExampleConventionalPON:16COs Super-PON:3COs
• SignificantlysmallernumberofCOs• Betterfiberutilization
• Muchlessbackboneandfeederfiber• LowerOSPbuildingcost
Feederfiber CAWGfeederfiberSplitterfeederfiber
10Km 10Km
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Advantages
• FewerfiberstrandsexitingaCO• Enablessmaller/fewercables• From432-fibercablesto12/48-fibercables
• LowerOSPbuildingcost• Smallercablescanbelongerandareeasiertobend/handle• Allowsuseofmicro-trenchinganddirectionalboringtechniques• Easiertorepair
• COconsolidation• Thesamenumberoffeederfiberscanserveamuchgreaterarea• LessCOsà lessOPEX
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AboutTrenching…Traditional Trenching Micro Trenching
Directional Boring
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…andRepairs
CO
A432-fibercable:• Contains36ribbonsof12fibers• ~10mintosplicearibbon• ~6hourstotaltospliceabrokencable• Additional~2hoursforcablemanipulation• Averagetimetorepairacabledamage:~8hours
6feedercables(432-fiber)
A24-fibercable:• ~40minstotaltospliceabrokencable• Additional~1hourforcablemanipulation• Averagetimetorepairacabledamage:~1hour40’
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Super-PONApplicability
• Wellsuitedfornewopticalplants(OSPs)developments• Significantsavingsincablingandbuildingcost
• ValuableasaretrofittoexistingOSPfor(5G)cellulardeployments• Integratedsupportforbothpoint-to-pointandresidentialcustomers
• CanbeusedtoconsolidateCOsleveragingexistingfiberplants• ACORD(CentralOfficeRedesignedasaData-center)enabler• IncreasedtypicalutilizationofOLTports
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Backend Central OfficewithSpaceandPower
OpticalMUX/
Amp
BBU
OLT
PointtoPointLinks
Fronthaul
Backhaul
Micro-trenchinginthetowerneighborhood
CellularTower
CellularSupport
• Integratedsupportforbothresidentialandpoint-to-pointdeployments
• Usepoint-to-pointforcellularsupport
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COConsolidation
• Operatorsfindadvantageousco-locatingdatacenterswithaccessnetworksforvalueaddedservices
• CurrentindustrytrendistowardDataCenterconsolidation• Asmallsetoflargedatacentersratherthanalargesetofsmalldatacenters• ThisalsopushesforCentralOfficesconsolidation
• UpcomingCORD(CentralOfficeRe-architectedasaDatacenter)architecturesfurtherpushtowardCOconsolidation
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CORD:Where?
aCO CO
CO
CO
CO
CO
CO
CO
CO
• Adata-centerineachCOisnotcosteffective• COconsolidationisneeded
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COConsolidation
CO CO
CO
CO
CO
CO
CO
CO
CO
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COConsolidation
CO CO
CO
CO
CO
CO
CO
CO
CO
OLT
CO
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OLT
OLT OLT
OLT
OLT
OLTOLT
OLT
COConsolidation
CO
OLT
CO
Let’saddaCAWGinperipheralCOs
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OLT
OLT OLT
OLT
OLT
OLTOLT
OLT
COConsolidation
CO
CO
OLT
2:2
Let’saddaCAWGinperipheralCOs
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OLT
2:2
OLT
2:2
OLT
2:2
OLT
2:2
OLT
2:2
OLT
2:2
OLT
2:2
OLT
2:2
COConsolidation
CO
CO
OLT
2:2
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Enablethenewservice
OLT
2:2
OLT
2:2
OLT
2:2
OLT
2:2
OLT
2:2
OLT
2:2
OLT
2:2
OLT
2:2
COConsolidation
CO
CO
OLT
2:2Let’susethebackbonefiberasCAWGfeeder
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OLT
2:2
OLT
2:2
OLT
2:2
OLT
2:2
OLT
2:2
OLT
2:2
OLT
2:2
COConsolidation
CO
CO
OLT
2:2Removetheoldservice
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COConsolidation
CO
CO
Removetheoldservice
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ConsolidatedCO
ConsolidatedCO
CORDisnowcosteffective
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Super-PONApplicabilitySummary
• Greenfield:• Opticalfiberplantbuildsimplification(lowerCAPEXandTTM)• Supportforbothresidentialandpoint-to-pointapplications
• Brownfield(opticalfiberplantalreadyinplace):• COconsolidationforCORD• Re-useexistingfiberplantandtransformperipheralCOsfrom(managed)activesitesto(unmanaged)holdersofpassivecomponents
• IncreasedtypicalutilizationofOLTports• Point-to-Pointsupportfor(5G)cellularandspecificsubscribers• OSPexpansion(i.e.,additionalOSPbuildtocomplementtheexistingOSP)
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Super-PONResidentialMarketOpportunity
• 2.5Gb/sGPONwillcontinuetobemainstreamtechnologyuntil2020
• 10Gb/sPONbecomessignificantstartingfrom2020
• Thetransitionto10Gb/scanbeasignificantmarketopportunityforSuper-PON
• Multiple10Gb/schannelssupport
• Super-PONmayactuallyhelpthetransitionto10Gb/s
• Enablesinfrastructureoptimizations
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Super-PONPoint-to-PointMarketOpportunity
Source:EricssonMobilityReport
Thecurrentgrowthofcellularnetworkingbringssignificantopportunityforthepoint-to-pointsupportofferedbySuper-PON
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Agenda
• Super-PONIdea• WhySuper-PON?• Super-PONPMD
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PMA OLTPMD
SIGNAL_DETECT ActiveOptical
MUX/Amp
PassiveCyclicAWG
PMA OLTPMD
SIGNAL_DETECT
ONUPMD PMA
SIGNAL_DETECT
Tx_Enable
PassiveOpticalSplitter
ONUPMD PMA
SIGNAL_DETECT
Tx_Enable
ONUPMD PMA
SIGNAL_DETECT
Tx_Enable
PassiveOpticalSplitter
ONUPMD PMA
SIGNAL_DETECT
Tx_Enable
MDI
MDI
…
……
…
SMFcable
SMFcable
SMFcable
SMFcable
SMFcable
SMFcable
SMFcable
Fiberopticcabling,activeopticalMUX/Amp,passivecyclicAWG,andpassiveopticalsplitter(Channel)
Super-PONPMD– Residential
TP1 TP2 TP3 TP4
TP7 TP8TP9 TP10
TP11 TP12
TP5 TP6 Channel:• FiberOpticCabling• OpticalMUX/Amp• CyclicAWG• OpticalSplitter
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PMA Pt2PtPMD
SIGNAL_DETECT ActiveOptical
MUX/Amp
PassiveCyclicAWG
PMA Pt2PtPMD
SIGNAL_DETECTP2PPMD PMA
SIGNAL_DETECT
Tx_Enable
P2PPMD PMA
SIGNAL_DETECT
Tx_Enable
MDI
MDI
…
…SMFcable
SMFcable
SMFcable
Fiberopticcabling,activeopticalMUX/Amp,andpassivecyclicAWG(Channel)
Super-PONPMD– PointtoPoint
TP1 TP2 TP3 TP4
TP7 TP8TP9 TP10
TP11 TP12
TP5 TP6 Channel:• FiberOpticCabling• OpticalMUX/Amp• CyclicAWG
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Existing802.3PMDDefinitions
Channel:• FiberOpticCabling• OpticalSplitter
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FSR4
CyclicAWG• ExhibitsthesamebehavioracrossitsFSRs• Thisenablesseamlessupgrades
l
l
l
l
lCyclicAWG
FSR1
FSR2
FSR3
GenXGenY
upstream downstreamFSR4 FSR2
FSR1FSR3
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ONU1
ONU2
ONUn
CyclicA
WG
ONU1
ONU2
ONUn
ONU1
ONU2
ONUn
... m+q ...
P2P1
P2P2
P2Pq
10G-EPONl1OLT
10G-EPONl2OLT
10G-EPONlmOLT
…
……
10Gl1Pt2Pt
10Gl2Pt2Pt
10GlqPt2Pt
…
……
BANDMUX
booster
preamp
MUX
DMUX
GenXService
CO
MUX/Amplifier
FSR1&
FSR3
GenXService:downstreaml ∈ FSR1
upstreaml ∈ FSR3
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ONU1
ONU2
ONUn
CyclicA
WG
ONU1
ONU2
ONUn
ONU1
ONU2
ONUn
... 2x(m+q) ...
P2P1
P2P2
P2Pq
UpgradetoGenY Service
CO
MUX/Amplifier10G-EPONl1OLT
10G-EPONl2OLT
10G-EPONlmOLT
…
……
10Gl1Pt2Pt
10Gl2Pt2Pt
10GlqPt2Pt
…
……
10G-EPONl1OLT
10G-EPONl2OLT
10G-EPONlmOLT
…
……
10Gl1Pt2Pt
10Gl2Pt2Pt
10GlqPt2Pt
…
……
BANDMUX
booster
preamp
MUX
DMUX
FSR1&
FSR3
FSR2&
FSR4
GenXService:downstreaml ∈ FSR1
upstreaml ∈ FSR3GenYService:
downstreaml ∈ FSR2upstreaml ∈ FSR4
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10G-EPONl1OLT
10G-EPONl2OLT
10G-EPONlmOLT
…
……
10Gl1Pt2Pt
10Gl2Pt2Pt
10GlqPt2Pt
…
……
BANDMUX
booster
preamp
MUX
DMUX
ONU1
ONU2
ONUn
CyclicA
WG
ONU1
ONU2
ONUn
ONU1
ONU2
ONUn
... m+q ...
P2P1
P2P2
P2Pq
GenYService
CO
MUX/Amplifier
GenYService:downstreaml ∈ FSR2
upstreaml ∈ FSR4
FSR2&
FSR4
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DefiningtheOpticalParameters
• UsingEDFAsasamplifiersimpliesusingtheC- andL-bandsforwavelengths• C-band:1530..1565nm,upstream• L-band:1565..1625nm,downstream
• Splitthebandsintwo~equallysizedrangestosupportspeedupgrades• GenXupstream:~1530..1546nm• GenYupstream:~1547..1563nm• GenXdownstream:~1565..1581nm• GenYdownstream:~1583..1599nm
• TheserangesdefinetheFSRsofthecyclicAWG• Withineachrange,defineasetofwavelengthstouseforDWDMtransmission
• 20channelsusinganominalchannelspacingof100GHz
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25G/50G/100G-EPON
WavelengthPlan
1260 1270 1280 1290 1300 1310 1320 1330 1340 1350 1360 1370 1380 1390 1400 1410 1420 1430 1440 1450 1460 1470 1480 1490 1500 1510 1520 1530 1540 1550 1560 1570 1580 1590 1600
…… …
GenY GenYGenX GenX
upstream downstream
…
Super-PONl
l
EPONupstream
EPONdownstream
1260 1270 1280 1290 1300 1310 1320 1330 1340 1350 1360 1370 1380 1390 1400 1410 1420 1430 1440 1450 1460 1470 1480 1490 1500 1510 1520 1530 1540 1550 1560 1570 1580 1590 1600
10G-EPONdownstream
10G-EPONupstream
l
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ExampleofResidentialandPoint-to-Pointl
16001530 1540 1550 1560 1570 1580 1590
GenY GenYGenX GenX
upstream downstream
l
Residential:Point-to-Point:
• Noneedtospecifyinthestandardwhichwavelengthsareforwhat• Canbedeployment/implementationspecific
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PreliminaryONUPMDRequirements• Continuous-modewide-bandreceiver• Cooledwavelength-stabilizedburst-modelasertransmitter
• 100GHznominalchannelspacingtoenableoperationwithoutawavelengthlocker
• Lasertransmittercanbe:• Nottunable(i.e.,onel)• Partiallytunable(e.g.,fouradjacentl)• Fullytunable(e.g.,16l,easierthanfullC-band)• l ∈ C-band{1530..1565nm}
• ONUPMDspeedscanbe:• Symmetric: 10Gb/supstream,10Gb/sdownstream• Asymmetric: 1Gb/supstream,10Gb/sdownstreamor
2.5Gb/supstream,10Gb/sdownstream
• RelaxedpowerbudgetbecauseofamplificationintheMUX/Amp
1Gb/s 2.5Gb/s 10Gb/s
Launchpower ~[-1to4]dBm ~[-1to4]dBm ~[4to9]dBm
Receiversensitivity - - ~-28.5dBm (FEC)
- 1Gb/s&2.5Gb/sfromPX10-U- 10Gb/sfromPR-U3Assuming~14.5dBUSMUX/Ampgainand~7.5dBeffectivenoisefigure
- FromPR-U3Assuming~12dBDSMUX/Ampgain
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OpticsCostTrend• Cooledlasersareexpectedtohavetodaya~10Xcostoveruncooledones• Also1G-EPONopticswere~10Xoftoday’scostwhentheywereintroduced• Costisstronglyrelatedtovolumes
1.8 4.69.1
15.420.6
30.2
48.0
70.4
88.6
106.1
0
20
40
60
80
100
120
2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014
Milli
ons
1G-EPON ONU Units (cumulative)
0
0.2
0.4
0.6
0.8
1
0 1 2 3 4 5 6 7 8 9 10 11
Years Since Standard Approval
ONU and OLT Transceiver Cost
1G ONU1G-OLT10G ONU10G OLT
Source:Infonetics (2004-2007),Ovum(2008-2014)
Seediagramonpage2oftheNG-EPON CallForInterest
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PreliminaryOLTPMDRequirements• Duplex(i.e.,2fibers)toconnecttotheMUX/Ampmodule• Burst-modeunfilteredreceiver
• Nofilterrequired- MUX/Amplifierperformsdiplexing andfilteringfunctions
• Cooledwavelength-stabilizedcontinuous-mode10Gb/slasertransmitter• Singlel• l ∈ L-band{1565..1600nm}
• OLTPMDcanbe:• Symmetric: 10Gb/supstream,10Gb/sdownstream• Asymmetric: 1Gb/supstream,10Gb/sdownstreamor
2.5Gb/supstream,10Gb/sdownstream
• RelaxedpowerbudgetbecauseofamplificationintheMUX/Amp
1Gb/s 2.5Gb/s 10Gb/s
Launchpower - - ~[0to4]dBm
Receiversensitivity ~-28 dBm (NoFEC) ~-28 dBm (NoFEC) ~-28dBm (FEC)
- RelaxedfromPR-D1Assuming~12dBDSMUX/Ampgain
- FromPR-D3Assuming~14.5dBUSMUX/Ampgainand~7.5dBeffectivenoisefigure
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PreliminaryPoint-to-PointPMDRequirements(COside)
• Duplex(i.e.,2fibers)toconnecttotheMUX/Ampmodule• Continuous-modeunfilteredreceiver
• Nofilterrequired- MUX/Amplifierperformsdiplexing andfilteringfunctions
• Cooledwavelength-stabilizedcontinuous-mode10Gb/slasertransmitter• Singlel• l ∈ L-band{1565..1600nm}
• Symmetricspeed(i.e.,10Gb/supstream,10Gb/sdownstream)• RelaxedpowerbudgetbecauseofamplificationintheMUX/Amp
• ~[-10to-6]dBm launchpower• ~-20dBm (noFEC)receiversensitivity
- RelaxedlaserpowerAssuming~12dBDSMUX/Ampgain
- FromtypicalZRSFP+specsAssuming~14.5dBUSMUX/Ampgain
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PreliminaryPoint-to-PointPMDRequirements(Customerside)
• Bidi(i.e.,1fiber)• Continuous-modewide-bandreceiver• Cooledwavelength-stabilizedcontinuous-mode10Gb/slasertransmitter
• Singlel • Partiallytunable• Fullytunable• l ∈ C-band{1530..1565nm}
• Symmetricspeed(i.e.,10Gb/supstream,10Gb/sdownstream)• RelaxedpowerbudgetbecauseofamplificationintheMUX/Amp
• ~[-10to-5]dBm launchpower• ~-23dBm (noFEC)receiversensitivity
- RelaxedlaserpowerAssuming~14.5dBUSMUX/Ampgain
- FromtypicalZRSFP+specsAssuming~12dBDSMUX/Ampgain
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10G-EPONl1OLT
10G-EPONl2OLT
10G-EPONlmOLT
…
……
BANDMUX
10Gl1Pt2Pt
10Gl2Pt2Pt
10GlqPt2Pt
…
……
booster
preamp
MUX
DMUX DCM
DCM
PreliminaryMUX/AmpRequirements• Downstreamparameters*:
• Residentialchannelspower:~+12dBm perl• Point-to-pointchannelspower:~+2dBm perl• Port-to-Portsmallsignalgain:>12dB• Port-to-Porteffectivenoisefigure:<12dB
• Upstreamparameters*:• GainclampedEDFA• Port-to-Portsmallsignalgain:14.5to17.5dB• Port-to-Porteffectivenoisefigure:<7.5dB
• DispersionCompensationneeded:
1Gb/s 2.5Gb/s 10Gb/s 25Gb/sDML No No Yes N/A
EML No No No Yes
*:Gain,noisefigure,andpowervaluesarecomputedtobeconsistentwiththeONU/OLTPMDparameters
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PreliminaryCAWGRequirements• Bidirectional• Athermal
• Operationaltemperaturerange:-40°Cto65°C
• Storagetemperaturerange:-40°Cto85°C
• CyclicFSRs:• FSR1:~1599..1583nm• FSR2:~1581..1565nm• FSR3:~1563..1547nm• FSR4:~1546..1530nm
• Adjacentchannelattenuation:>20dB
(a) (b) Wavelength shift (CB band) (c) Wavelength shift (CH5 in CB)
(a) (b) Wavelength shift (CB band) (c) Wavelength shift (CH5 in CB)
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SpeedConsiderations• Forresidentialsupport,anEMLlaserintheOLTandaDMLlaserintheONUallow:
• 10Gb/sdownstream– 2.5Gb/supstreamiftheMUX/Ampdoesnotcontaindispersioncompensation
• 25Gb/sdownstream– 10Gb/supstreamiftheMUX/Ampdoes containdispersioncompensation
• Forpoint-to-pointsupport,EMLlasersonbothendsallow:• 10Gb/ssymmetriciftheMUX/Ampdoesnotcontaindispersioncompensation• 25Gb/ssymmetriciftheMUX/Ampdoes containdispersioncompensation
• The2.5Gb/sEthernetspeedisalreadydefinedforUTPcablingandisbeingdefinedforbackplaneoperations
• IEEE802.3bzandIEEEP802.3cb
• Definingitforopticaloperationsseemsaverydoableeffort• Downclockingthe10Gb/sspecification• EnablestoleverageforEthernettheexisting2.5Gb/sGPONopticalecosystem
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WhyNow?
• TheCORDarchitectureisgettingreal• ImpliesCOconsolidation• Super-PONcomplementsintheaccessnetworktheconsolidationmadepossibleincomputeandservicesbyCORD
• Super-PONpoint-to-pointsupporthelps5Gcellulardeployments• Technologyadvancementsmadecooledlasersandtunablecooledlasersmoreaffordablethanbefore
• EnablesnarrowDWDMchannelbands
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ItemsforStandardization
• Largerscaleopticalarchitecture• IncludingamplificationandcyclicAWG
• AdditionalPMDspecifications• Newchannels• Opticalparameters(Wavelengthplan,powerbudgets,etc.)• Wavelength-stabilizedlasers(withoptionaltunability)
• Speeds:• Symmetric:10Gb/supstream,10Gb/sdownstream• Asymmetric:1Gb/supstream,10Gb/sdownstream• Asymmetric:2.5Gb/supstream,10Gb/sdownstream
• Protocolparameters(ifany)• …
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Summary
• Super-PONintroducesnewtechnologiesintheEPONstandardecosystem• DWDM,amplification,mux/demux (e.g.,EDFAsandCAWG)
• ItoperatesinadifferentregionofthespectruminrespecttoexistingEPON• DWDMC- andL-band,requiringcooledlasers
• Cooledlasersdonothavetobeexpensive• Technologyisfine,itisallamatterofvolumes• Super-PONmayhelpbringingdownthecostandenablethemforotherEPONenvironments
• The2.5Gb/sEthernetspeedcouldmakesenseforSuper-PON• Enablesleveragingtheexisting2.5Gb/sGPONopticalecosystemsforEthernet
• Let’sputsomeeffortinstudyingthesetechnologiesandtheirgreaterimplications• IsthereinterestinperformingthisstudyandeventuallyprepareaCFIpresentation?
ONU1
ONU2
ONUn
CyclicA
WG
ONU1
ONU2
ONUn
ONU1
ONU2
ONUn
... m+q ...
P2P1
P2P2
P2Pq
10G-EPONl1OLT
10G-EPONl2OLT
10G-EPONlmOLT
…
……
BANDMUX
10Gl1Pt2Pt
10Gl2Pt2Pt
10GlqPt2Pt
…
……
booster
preamp
MUX
DMUX
CO
MUX/Amplifier
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Thankyou
