Transcript Triple Play Dream

Repeaterless DWDM
– A 317km Caribbean
Festoon Segment
Upgrade with
Terrestrial MSTP
CANTO 2007
Emanuel Nachum
TRACK A
Flamboyant South
Vice President, Americas Marketing
Wednesday 27 June 2007
Connecting the Caribbean 1:00 - 2:15
Outline
Optical technology evolution
317KM festoon segment upgrade
Using All-Range system
Expanding services with Multi-Degree Optics
Evolution of Wavelength Function
Legacy WDM - Fiber Relief Solution
Connection-oriented PSTN services
Simple, predictable traffic
SONET (and ATM, FR) used as provisionable transport
Services
Provisionable Transport
Fiber Plant
Evolution of Wavelength Function
Legacy WDM - Fiber Relief Solution
Connection-oriented PSTN services
Simple, predictable traffic
SONET (and ATM, FR) used as provisionable transport
Reconfigurable WDM – High Order Managed Transport
Services become more dynamic (IP migration)
Service bandwidth grows – IP Video
OTN (G.709) provides OA&M for wavelengths
Services
Provisionable
Ethernet
Transport
WDM ROADM
(Virtual Fiber)
Fiber Plant
Optical Technology Trends
ROADM is
key enabler of
IP video
applications
Reconfigurable
metro/regional
networks driving
more power and
distance
Power and
distance used for
other long haul
applications
Unrepeatered Submarine Systems
Upgrade existing
undersea festoon and
inter-island cable
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
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
and
Puerto Rico
Single-Channel Fiber Adapted to DWDM
Original Signal Propagation
Low-dispersion G.653
(Z-fiber) at beginning of
span with high launch
power would induce
strong four-wave mixing
Erbium
Doped
Fiber
30Km
G.653
220Km
G.654
67Km
G.654
Rotated Signal Propagation
“Logically rotating” the
link enables DWDM
since receive power is
too low to cause
nonlinear degradation
Erbium
Doped
Fiber
67Km
G.654
220Km
G.654
30Km
G.653
All Range™ Optics – One Platform
Inter-metro spans up to 2000km w/o OEO
In-line amps
Extended Reach
• E-FEC
• Dual stage ROADM EDFA
• Low-cost regional RAMAN
NG DWDM Technologies
• 10-degree ROADM
• Enhanced power control
• Wavelength management
CWDM interworking
Metro
ROADM/DWDM
Networks
Unrepeatered single spans over 300km
Packet Optical Convergence
• Carrier Ethernet / MPLS
• Legacy protocols
• Optical or electrical switching
Using All Range™ Terrestrial DWDM
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
Rotated Signal Propagation
EDFA Booster
EDFA Pre-amp
Erbium
Doped
Fiber
Backward Raman
Forward Raman
(and ROPA pump*)
67Km
G.654
*ROPA becomes transparent with high signal power
220Km
G.654
30Km
G.653
Antillas-1 Segment Upgrade Benefits
G.654 + passive EDF +
G.653
Dominican
Republic
Puerto Rico
317 Km
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
Multi-Degree Attribute
WSS ROADM
Ten Degrees
o
n p
OADM
Two Degrees
1
m
1


n
q
v
r
n
m
Mux / Demux
One Degree
m
 
n
u
t
s
Fixed Filter Provisioning
Site 1
Site y
Site a
Subtend
Ring
Site 2
Site 4
Backbone
Ring
Access
Ring
Site b
Site 3
Site x
This is
Provisioning a new channel from Sitehard
y to Site
2
work!
Optical budget is affected on several spans
Truck rolls required at hub sites (mux/dmx) and endpoints to
install transponders – even with APC
Multi-Degree ROADM Provisioning
Site 1
Site y
Site a
Subtend
Ring
Site 2
Site 4
Backbone
Ring
Access
Ring
Site b
Site 3
Site x
Provisioning a new channel from Site y to SiteHey,
2 this
Minimal
See?impact to optical budget – instantly adjusted
is easy!
Brief visits only at endpoints to install port cards – no tuning,
cross patching, amp/regen install, or revisits
Sites may be pre-provisioned and lit up later remotely
10-Degree ROADM – More Efficient Networking
Core Ring
10 Subnetwork
10 Subnetwork
10 Add / Drop
Traditional DWDM
3 Shelves
Multi-Degree ROADM
Versus
1 Shelf
50 Transponders
10 Transponders
42 Fiber Cables
32 Fiber Cables
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
Site 1
Site y
Site a
Site 2
Subtended
Festoon
Site 4
Island Backbone
Ring
Access
Ring
Site b
Site 3
Site x
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
Multi Degree Optical Networking
Multi-degree convergence of packet + optical and
“dry” metro flexibility + “wet” long haul reach
Metro/Regional
MEF
Certified
10-Degree All Range™ ROADM
NG-SONET Ethernet
Switch
Switch
Tunable
MuxPonders
Long Haul
80 Channels
2,000KM
Beyond ROADM:
Multi-Degree Packet–Optical Convergence
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
[email protected]