www.optovia.com Advances in optical amplifier technologies TF-NGN, Lisboa, 30 Sep 2004 Roland Leners [email protected]
www.optovia.com
Advances in optical amplifier technologies
TF-NGN, Lisboa, 30 Sep 2004
Roland [email protected]
Slide 5 Proprietary
A build example
AMSROT100km
PAR LIL DÜSBRU300km 150km 200km 250km
The 1980’s
PDH/SDH regeneratorPDH/SDH terminal
Slide 6 Proprietary
A build example
AMSROT100km
PAR LIL DÜSBRU300km 150km 200km 250km
The 1980’s
PDH/SDH regeneratorPDH/SDH terminal
The 1990’s
EDFASDH/WDM terminal
Slide 7 Proprietary
A build example
AMSROT100km
PAR LIL DÜSBRU300km 150km 200km 250km
The 1980’s
PDH/SDH regeneratorPDH/SDH terminal
The 1990’s
EDFASDH/WDM terminal
SDH/WDM/XC terminalEarly 2000’s
EDFA/RamanOADM
Slide 8 Proprietary
Optical amplifier trends over the last decade
PerformanceReach: Several 100 km’s to several 1000 km’s Capacity: 4x2.5G λ’s to 160x10G λ’s (R)OADM support
CostEDFA: > €5000/λ to < €1000/λ (1996-present)Raman: > €5000/λ to < €1000/λ (1999-present)
InterworkingColoured LR optics on SDH ADM’s and XC’s
Slide 9 Proprietary
Next steps in performanceLilleParis
All Optical Networks Hut Skipped Networks
PAR
LILBRU
ROTAMS
DÜS
HAM
BER
NÜR
PRAFRA
STR
ZÜR
MILLYO
PAR
LILBRU
ROTAMS
DÜS
HAM
BER
NÜR
PRAFRA
STR
ZÜR
MILLYO
OADMs only
Brussels
Rotterdam
Amsterdam
Düsseldorf
Lille
Paris
Brussels
Rotterdam
Amsterdam
Düsseldorf
Lille
Paris
No inline amplifiers
Slide 10 Proprietary
Next steps in performanceLilleParis
All Optical NetworksAmplifier requirements
Very low noise (~0dB)Moderate gain (~15dB)Moderate dynamic range (~5dB)Raman only
Network requirementsVery high capacity (>100 Gb/s per route)Long circuits (>2000km)
Hut Skipped NetworksAmplifier requirements
Low noise (<3dB)High gain (>30dB)Large dynamic range (>10dB)Hybrid EDFA/Raman
Network requirementsModerate capacity (<100 Gb/s per route)Shorter circuits (<1000km)
Slide 11 Proprietary
Hut Skipping « Rule of thumb »
Hybrid vs. Raman only
0%10%
20%30%
40%50%
60%70%
80%90%
100%
200 400 600 800 1000 1200 1400 1600 1800 2000 2200
Route length (km)
Typical inline amplifier site reduction (%)
Hybrid vs. EDFA only (Traditional)
Slide 12 Proprietary
Economics of Hut Skipping (~650km link)
0 €
100.000 €
200.000 €
300.000 €
400.000 €
500.000 €
600.000 €
700.000 €
Opex (4 yrs) 244.800 € 168.960 €
Capex 432.000 € 360.000 €
Traditional HSA
Slide 13 Proprietary
Traditional WDM system engineering
Single vendor domain
Mux
Dem
ux
Amplifiers
Client (e.g. Router)
Element Management System
Mux
Dem
ux
TxRxTxRx
EMS interface
Client (e.g. Router)
Slide 14 Proprietary
Open WDM system engineering
Umbrella Element Management System
EMS interface
Multiple vendor domains
Mux
Dem
ux
Amplifiers
Client (e.g. Router)
Mux
Dem
ux
TxRx
Client (e.g. Router)
TxRx
Example: Strategy pursued by 40G transponder vendors for upgrading existing links
Slide 15 Proprietary
Open WDM system engineering
Umbrella Element Management System
EMS interface
Multiple vendor domains
Mux
Dem
ux
Amplifiers
Client (e.g. Router)
Mux
Dem
ux
TxRxTxRx
Client (e.g. Router)
Example: Strategy pursued by Optovia
Slide 16 Proprietary
Open WDM system engineering
Multiple vendor domains
Mux
Dem
ux
Amplifiers
Client (e.g. Router)
Client (e.g. Router)
Mux
Dem
ux
Umbrella Element Management System
EMS interface
Early examples in the SDH worldNext logical step in the IP/WDM world!?
Slide 17 Proprietary
How can an amplifier support Open WDM systems?
Flexible link engineeringCompatibility with broad range of TxRx settingsTransparency to modulation formats (NRZ, RZ, xPSK, …)Compatibility with any kind of DCMEasy to use link engineering tool
Optical Supervisory Channel interworkingCompatibility with OSC of client system
EMS integrationIntegrability into 3rd party NMS Integrability into EMS of client system (WDM, XC, …)Autonomous EMS
Slide 18 Proprietary
The road ahead
The basic amplifier technology is available.Innovation will come from…
Integration of components (the « secret sauce » )Standardization of ancillary functionsOpen WDM systems
… and advances in enabling technologiesNew fibre typesNew modulation formats« Super-Turbo » FEC chipsets