1 State of the Industry – Optical Networking Mark E. Allen Infinera Corporation.
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Transcript of 1 State of the Industry – Optical Networking Mark E. Allen Infinera Corporation.
1
State of the Industry – Optical Networking
Mark E. Allen
Infinera Corporation
Page 2
Research and Education Requirements
• Scalable
• High Bandwidth
• Flexible
• Standards Based
• Low Acquisition Cost
• Low Ongoing Expenses (Op Ex)
Page 3
A short history …Legacy optical transport
Washington Dover Philadelphia Trenton Newark New York Hartford Providence Boston
OEO OEO OEO OEO OEO OEO OEO OEO OEO
Digital repeaters enabled PM’s & add/drop anywhere
Page 4
A short history …Legacy optical transport
Washington Dover Philadelphia Trenton Newark New York Hartford Providence Boston
… … … … … … … … …
OEO OEO OEO OEO OEO OEO OEO OEO OEO
OEO OEO OEO OEO OEO OEO OEO OEO OEO
OEO OEO OEO OEO OEO OEO OEO OEO OEO
OEO OEO OEO OEO OEO OEO OEO OEO OEO
Capacity growth created unsustainable economics
Page 5
A short history …Legacy optical transport
Washington Dover Philadelphia Trenton Newark New York Hartford Providence Boston
… … … … … … … …OEO OEO OEO OEO OEO
OEO OEO OEO OEO OEO
OEO OEO OEO OEO OEO
OEO OEO OEO OEO OEO
WDM reduces line costs, but needs OEO for add/drop
OEO
OEO
OEO
OEO
…
OEO
OEO
OEO
OEO
OEO
OEO
OEO
OEO
OEO
OEO
OEO
OEO
Page 6
A short history …Legacy optical transport
… … … … … … … … …
OEO OEO OEO OEO OEO OEO OEO OEO OEO
OEO OEO OEO OEO OEO OEO OEO OEO OEO
OEO OEO OEO OEO OEO OEO OEO OEO OEO
OEO OEO OEO OEO OEO OEO OEO OEO OEO
Washington Dover Philadelphia Trenton Newark New York Hartford Providence Boston
Attenuators
Gain Flattening FiltersO-ADM Filters
Noise Rejection FiltersOptical MonitorsPMD CompensationRaman Pumps
Isolators
All-optical eliminates OEO, but increases complexity
Chromatic Dispersion
Dispersion Slope
PMD
2nd order PMD
Self-Phase Modulation
SBS
X-Phase ModulationFour-Wave Mixing
Multi-Path Interference
Gain Ripple
Gain Tilt
ASE Accumulation
Modulation Instability
Wavelength banding
Channel Flatness
OSNR MeasurementReturn power
Gain transient control
Channel equalization
Raman self-pumping
Many optical impairments…
…requires complex compensation
Page 7
The Catch…
• Network now managing waves not bits– The core optical network has evolved from Digital to Analog
• Forces compromise between…– lower network cost (minimize OEOs)…
– or number of markets served (OEO access)
• Complexity remains for network managers:– Complexity of planning & deployment
– Complex engineering, compensation and adjustment
– No sub- access to digital data
– Limited add/drop, multiplexing or grooming
– No digital performance monitoring or diagnostics
Page 8
Infinera’s Photonic Integrated Circuit (PIC) Innovation
100 Gb/s Transmit
100 Gb/s Receive
100Gb/s Transmit
100Gb/s Receive
Page 9
Infinera Differentiators
• Photonic Integrated Circuit-Eased Benefits– Higher Reliability
– Faster Scalability
– Faster Install and Turn-up
– Savings in Spares, Space, and Power
• Digital Optical Networks-Enabled Benefits– Digital, Solid-State Add/Drop
– Faster Time-to-Service
– Forecast Tolerance
– Consolidated Architectures
Page 10
Digital Networking Advantages:Infinera: Simple, Fast, Digital Add/Drop
• Add/drop 10G, 2.5G, or GigE using hot-pluggable TAM cards
• All-Digital– Implemented in solid state,
e.g. silicon
– No MEMS, tunable filters, or other optical devices involved
• Completely independent from optical line– Hitless
– No need to consider in span designs
– One TAM can drop traffic bound for different destinations0 Gb/s20 Gb/s60 Gb/s400 Gb/s
0% 100%
Percent Add/Drop
Page 11
Digital Networking Advantages:
Forecast Tolerance
• The forecasting challenge:– Predict the right amount of bandwidth…– The right service interfaces…– To the right locations…– At the right time
• Infinera supports– 100Gb/s line side blocks of bandwidth– Interchangeable Tributary Adapter Modules– Add/Drop any service to any location on any port
• Ultimate flexibility and forecast margin
Page 12
Summary: Photonic Integration Enables Digital Optical Networking
• Fundamentally lower cost and steeper cost curve
• Increased revenue potential with Add/Drop Anywhere
• Simpler Network Architectures
• Simpler Operations and Engineering
Digital OpticalNetworking