Transcript Digital ROADM Key Messages

Impact of Photonic Integration on Optical
Services
Serge Melle
VP Technical Marketing, Infinera
Internet Backbone Growth
 Industry consensus indicates a sustainable growth rate of 75% to
100% per year in aggregate traffic demand
 Traffic increased more than 10,000x from 1990 to 2000
 Traffic projected to increase an additional 1,000x from 2000 to 2010
[1] K. G. Coffman and A. M. Odlyzko, ‘Growth of the Internet’, Optical Fiber Telecommunications
IV B: Systems and Impairments, I. P. Kaminow and T. Li, eds. Academic Press, 2002, pp. 17-56.
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The Future Belongs to Tb/s Links
 Carriers deployed Nx10 Gb/s networks several years ago
 Now evaluating deployment of (Nx) 40 Gb/s router networks
 Current Backbone growth rates, if sustained, will require IP link capacity
to scale to > 1 Tb/s by 2010
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Scalability Challenges
 Service scaling:
 Evolution to 40G and 100GbE services
 Network scaling:
 >1Tb/s per fiber
 Nodal scaling
 System size for >Tb/s nodes
 Operations
 Deployment, fibers, spares,
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WDM Systems Today
100 Gb/s Transmit
100 Gb/s Receive
Single WDM channel
----------------
times 32, 40 or 80 wavelengths
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Photonic Integrated Circuit Innovation
100 Gb/s Transmit
100Gb/s Transmit
100Gb/s Receive
5mm
 DIRECT BENEFITS:

100
Gb/s
Receivereliability over discrete optics
 Reduce size, power,
cost
and improve
STRATEGIC BENEFITS:
 Affordable OEO conversion re-enables digital reconfigurability at
every node
 Order-of-magnitude in capacity deployment & scalability
 Result: Lower CapEx, lower OpEx, more flexible
reconfigurable optical network
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Impact of PIC Technology
Conventional WDM:
PIC-based WDM:
 Capacity deployed one lambda at
 Capacity deployed 100G at a
a time
 OEO only at network edge
 Network service tied to the
wavelength
 Managing bandwidth occurs
elsewhere
time
 OEO at all service locations
 De-couple service layer from the
transport layer
 Integrate DWDM with digital
service switching
Line
Transponder
Trib
Line
Trib
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How PIC Capacity Is Managed
10-l x 10G
Flexibility
Scalability
4 x ODU1
per 10G
 100G PIC = 10 x 10G lambdas = 40 x ODU1
 Sub-wavelength bandwidth management maximizes

service delivery flexibility
Super-wavelength bandwidth management supports 40G
and 100G services
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PIC Capacity Scalability
20-l x 20G
Flexibility
Scalability




Increase PIC scalability through:
More channels (ie: from 10 to 20 lambda or more)
Higher bit rates (ie: from 10Gb/s to 20Gb/s to 40Gb/s)
Also increasing WDM line capacity to >1Tb/s per fiber
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Announced at OFC 2006…
40 x 40Gbit/s
Electrical Input
l1... l40
40 x 40Gbit/s
0
-10
-20
-30
-40
-50
-60
1.550
DC Electrical
Bias and Control
1.555
1.560
1.565
Wavelength (µm)
…40 channels x 40 Gb/s
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CH40
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Pow attenin
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Pow
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Optical Output
AWG Multiplexer
CH1
Normalized Output Power (dB)
1.6Tbit/s DWDM Large-Scale PIC Transmitter
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Service Opportunities
Transition to Ethernet
Bandwidth on Demand
•Layer 1 Optical VPNs
•UNI-based inter-network signaling
New Service
Opportunities
New Transport Services
Speed as a Sales Advantage
• 40G and 100GbE
• Restorable bandwidth
• Sub-lambda Switching
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Short Term Capacity Lease
“Pay for Connectivity Only When You Need It”
UNI
Optical Transport “Cloud”
UNI
10G “Port”
UNI
UNI
UNI
UNI
Phase 1: Human
provisioning
Phase 2: GMPLS UNI
automated provisioning
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Layer 1 VPN
“A secure, private optical network without owning physical assets”
Customer 1
Customer 2
EMS
1
1
GMPLS
2
2
Complementary
to a dynamically allocated service
1
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1 and 10GbE Lightpaths
“Ethernet cost with SDH Manageability and Quality”
DB
DB
DB
Optical Transport “Cloud”
DB
DB
DB
DB
DB
DB
 10GbE: LAN PHY preferred to save router/switch port cost
 Full transparency
 Optional restoration (differentiate vs. “wavelength” service)
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40G Super-Lambda Service
40G IP Backbone Without Re-Architecting the Optical Network
OC-768/STM-256 capacity router-to-router
4 x 10G across the optical network
Optical Transport “Cloud”
1-port
40G
40G over
4-port 10G
 Full 40G link utilization without 40G WDM link engineering or cost
 Common transport network supports 40G router-router traffic
 40G service using either 1 x 40G or 4 x 10G router blades
 Optional GMPLS restoration maximizes service SLAs
Infinera Confidential and Proprietary | 15
Using GMPLS Restoration for Lower MTTR
More Robust “Wave” Services
Static Transport
GMPLS-enabled
GMPL
S
In case of failure, technician must
restore service. Outage may last
minutes or hours.
= DWDM terminal
= ROADM or WSS
If spare bandwidth is available,
GMPLS reroutes, providing a “quick
fix” at no additional cost.
GMPLS-based
transport system
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Integration: Heart of a New Strategy
100 Gb/s Transmit
100 Gb/s Receive
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Thank You