repeaterless dwdm – a 317km caribbean festoon segment upgrade with terrestrial mstp
DESCRIPTION
Repeaterless DWDM – A 317km Caribbean Festoon Segment Upgrade with Terrestrial MSTP. Emanuel Nachum Vice President, Americas Marketing. CANTO 2007 TRACK A Flamboyant South Wednesday 27 June 2007 Connecting the Caribbean 1:00 - 2:15. Outline. Optical technology evolution - PowerPoint PPT PresentationTRANSCRIPT
Repeaterless DWDM
– A 317km Caribbean
Festoon Segment
Upgrade with
Terrestrial MSTPCANTO 2007
TRACK A Flamboyant South
Wednesday 27 June 2007Connecting the Caribbean 1:00 - 2:15
Emanuel Nachum
Vice President, Americas Marketing
Outline
Optical technology evolution
317KM festoon segment upgrade
Using All-Range system
Expanding services with Multi-Degree Optics
Fiber Plant
Evolution of Wavelength Function
Provisionable Transport
Services
Legacy WDM - Fiber Relief SolutionConnection-oriented PSTN services
Simple, predictable traffic
SONET (and ATM, FR) used as provisionable transport
Fiber Plant
ROADM
Ethernet
WDM (Virtual Fiber)
Evolution of Wavelength Function
Provisionable Transport
Services
Legacy WDM - Fiber Relief SolutionConnection-oriented PSTN services
Simple, predictable traffic
SONET (and ATM, FR) used as provisionable transport
Reconfigurable WDM – High Order Managed TransportServices become more dynamic (IP migration)
Service bandwidth grows – IP Video
OTN (G.709) provides OA&M for wavelengths
ROADM is key enabler of
IP video applications
ROADM is key enabler of
IP video applications
Optical Technology Trends
Reconfigurable metro/regional
networks driving more power and
distance
Reconfigurable metro/regional
networks driving more power and
distance
Power and distance used for other long haul applications
Power and distance used for other long haul applications
Unrepeatered Submarine Systems
The Caribbean has more than 1/3rd of the world’s installed festoon route-miles (including ARCOS-1)
Fiber count gap between existing and new cable systems widened greatly over last 5 years
Much cheaper to operate and maintain unrepeatered festoon – O&M key factors today
Upgrade existing undersea festoon and
inter-island cable systems
Upgrade existing undersea festoon and
inter-island cable systems
317 KM Festoon Segment Upgrade
Antillas-1 between Punta Cana and Isla Verde
Currently operating at STM-16 (2.5 Gb/s per pair)
Field trial to determine how to implement DWDM
Part of the proposed Trans-Caribbean Cable Network (TCCN)
Tested link between
Dominican Republic
andPuerto Rico
Tested link between
Dominican Republic
andPuerto Rico
Single-Channel Fiber Adapted to DWDM
30KmG.653
220KmG.654
67KmG.654
Erbium Doped Fiber
Original Signal Propagation
67KmG.654
220KmG.654
30KmG.653
Erbium Doped Fiber
Rotated Signal Propagation
Low-dispersion G.653 (Z-fiber) at beginning of span with high launch power would induce strong four-wave mixing
“Logically rotating” the link enables DWDM since receive power is too low to cause nonlinear degradation
Unrepeatered single spans over 300km
Inter-metro spans up to 2000km w/o OEO
CWDM interworking
In-line amps
MetroROADM/DWDM
Networks
All Range™ Optics – One Platform
Packet Optical Convergence• Carrier Ethernet / MPLS • Legacy protocols• Optical or electrical switching
Extended Reach• E-FEC• Dual stage ROADM EDFA• Low-cost regional RAMAN
NG DWDM Technologies• 10-degree ROADM• Enhanced power control• Wavelength management
Using All Range™ Terrestrial DWDM
67KmG.654
220KmG.654
30KmG.653
Erbium Doped Fiber
Rotated Signal Propagation
Backward RamanForward Raman(and ROPA pump*)
EDFA Booster EDFA Pre-amp
EDFA booster and pre-amp combined with forward and backward Raman pumping
One system for undersea transport plus metro aggregation and service delivery
Commonality reduces equipment cost, inventory, and operator learning curve
*ROPA becomes transparent with high signal power
Dominican Dominican RepublicRepublic
Puerto RicoPuerto Rico
317 Km317 Km
Antillas-1 Segment Upgrade Benefits
Eightfold increase of system bandwidth
Use of cost-effective terrestrial DWDM platform
Integrated multi-degree ROADM, Next-Gen SONET/SDH and MEF-certified Ethernet/MPLS switch for NGN service delivery
Future DWDM enhancements can further increase capacity without modifying the cable system
G.654 + passive EDF + G.654 + passive EDF + G.653G.653
Multi-Degree Attribute
m1
n
Mux / DemuxOne Degree
n
1 n
m
OADMTwo Degrees
WSS ROADMTen Degrees
o
mn p
q
r
stu
v
Subtend
Ring
Fixed Filter Provisioning
Backbone
Ring
Access
Ring
Site 1
Site 3
Site a
Site b
Site 4
Provisioning a new channel from Site y to Site 2Optical budget is affected on several spansTruck rolls required at hub sites (mux/dmx) and endpoints to install transponders – even with APC
Site 2
Site y
Site x
This is hard work!
Subtend
Ring
Multi-Degree ROADM Provisioning
Backbone
Ring
Access
Ring
Site 1
Site 3
Site a
Site b
Site 4
Provisioning a new channel from Site y to Site 2Minimal impact to optical budget – instantly adjustedBrief visits only at endpoints to install port cards – no tuning, cross patching, amp/regen install, or revisitsSites may be pre-provisioned and lit up later remotely
Site 2
Site y
Site x
Remote command
Hey, this is easy!See?
10-Degree ROADM – More Efficient Networking
Multi-Degree ROADMTraditional DWDM
Core Ring
10 Subnetwork 10 Subnetwork
10 Add / Drop
3 Shelves
50 Transponders
42 Fiber Cables
1 Shelf
10 Transponders
32 Fiber Cables
Versus
Broadband Services Down Island
Onshore optical networks quickly growing into multi-service ROADM applications
Broadband Wi-Fi/Wi-Nax, Mobility, Multi-service backhaul, etc.
Network infrastructure that can dynamically adapt to changing subscriber demands:
Reduces OpEx and CapEx while delivering Ethernet-based, on-demand services
Quick and easy modifications of optical network designs as demands change
Eliminate the need for traffic pre-planning and forecasting
Eliminate the need for truck rolls
Support complex topologies such as multi-ring and mesh with any to any connectivity and no back to back systems
Multi-Degree ROADM Flexibility
Provides rapid turn up of new wavelengths and sites
Allows efficient creation of access/subtended WDM rings off backbone network w/ ALL-OPTICAL signals
Does not require back to back DWDM nodes
Subtended
FestoonIsland Backbone
Ring
Access
Ring
Site 1
Site 2
Site 3
Site a
Site b
Site x
Site y
Site 4
Multi Degree Optical Networking
Metro/Regional Long Haul10-Degree All Range ™ ROADM
MEF Certified
MEF Certified
80 Channels 2,000KM
80 Channels 2,000KM
Beyond ROADM: Multi-Degree Packet–Optical Convergence
EthernetSwitch
Tunable MuxPonders
NG-SONETSwitch
Multi-degree convergence of packet + optical and “dry” metro flexibility + “wet” long haul reach
Summary – Upgrade Existing Festoon
Avoid expense of installing new cable system for more capacity
Retain economical operation & maintenance of unrepeatered festoon
Lower costs – substitute traditional undersea DWDM with all-range terrestrial DWDM
One Multi-Service DWDM system for onshore service delivery and offshore transport
Thank You