Alcatel-Lucent 100 GbE User manual

Alcatel-Lucent Innovation Days – December 2008
Context
Modern telecommunication networks need to be built
with enormous traffic rowth in mind. For example,
today some internet exchan e nodes have annual
rowth rates of more than 200% due to dramatic
increases in users coupled with the needs of enriched
data and broadband video services.
Accommodation of the lobal explosion in traffic
(Fi ure 1) can only be assured by implementation of
the most advanced hi h capacity optical metro/core
transport network technolo ies. Soon networks based
on next eneration 40/100 Gi abit Ethernet (GbE)
transport technolo ies will predominate. They will be
based on standards currently under preparation by
several standards or anisations (e. . IEEE, ITU-T).
Fi ure 1: Technolo y roadmap of optical transport networks.
40/100GbE will be dominant technolo y within the next decade.
Alcatel-Lucent’s concepts and real-time trials
demonstrate 100Gbe’s raceful introduction and
evolution to meet operators’ future needs.
Challenges
To et from here to there, several challen es
associated with development and operation of ultra-
hi h speed components and systems for serial 100
Gbit/s optical transmission must be overcome:
•Stron er transmission si nal impairments
associated with the up rade of data rates,
due to chromatic dispersion (CD) and
polarization mode dispersion (PMD), must be
compensated or miti ated efficiently.
•Spectral efficiency must increase, enablin
100Gb/s transmissions over exsitin 10/40G
DWDM systems (50/100GHz channel spacin ).
•Complex inte rated circuits for di ital si nal
processin (DSP) and new very hi h-speed
components have to be developed usin
state-of-the-art electronics and photonics.
Innovation
Alcatel-Lucent has developed 100 Gbe concepts,
shown prototypes and done field trials demonstratin
its expertise in addressin future requirements.
Dispersion tolerant serial Nx100Gb/s DWDM
transmission with high spectral efficiency
Fi ure 2 is a schematic of how hi h capacity
Nx100Gb/s optical transmission is feasible over lon -
haul fiber links without dispersion compensation units
(DCU) usin conventional 10Gb/s DWDM platforms
with narrow channel spacin (50GHz) correspondin
to a spectral efficiency of 2bit/s/Hz.
Fi ure 2: Nx100Gb/s Coherent PDM-QPSK DWDM transmission over
1200km laboratory fibre link.
erizon 100G field trial with live traffic
Alcatel-Lucent, in a real-time field trial with Verizon
(Fi ure 3), proved a 100Gb/s channel carryin a HDTV
video si nal can transmit parallel to existin live
traffic 10Gb/s DWDM channels.
10Mb/s
10Gb/s
1Gb/s
100Mb/s
100Gb/s
THE
ETHERNET
EVOLUTION
ROADMAP
(LAN/WAN)
100GbE
10GbE
1GbE
100MbE
10MbE
40GbE
DAT
A
RAT
2000 2010
1990 YEAR
40/100GbE will be
dominant transport
technology in next
generation optical
metro/core networks
A.O.
SSMF
Tunable
filter
x3
A.O.
100km
SSMF
SSMF
SSMF
100G
Coherent
RX
WSS
Optium
1
3
2x28Gbit/s
M wavelen ths
QPSK
QPSK
2x28Gbit/s Nx112Gbit/s
Switch
Fiber (dispersion, PMD)
A.O.
SSMF
Tunable
filter
x3
A.O.
100km
SSMF
SSMF
SSMF
100G
Coherent
RX
WSS
Optium
1
3
2x28Gbit/s
M wavelen ths
QPSK
QPSK
2x28Gbit/s Nx112Gbit/s
Switch
Fiber (dispersion, PMD)
Polarization Division Multiplexed
Quadrature Phase Shift Keyin
Transmitter
100 Gigabit Ethernet (100 GbE)
Advanced Serial 100Gb/s Transmission Technology for Next Generation
Optical Transport Networks

Fi ure 3: Verizon 100Gb/s transmission trial over 500 km link.
In a trial in Germany (Fi ure 4) dense-wavelen th-
division-multiplexed(DWDM) 100Gb/s channels were
sent efficiently over lon -haul fiber infrastructure
exhibitin typical field transmission characteristics.
Fi ure 4: 8x100Gb/s NRZ-VSB DWDM transmission over 500km
installed field fiber with typical field transmission characteristics.
Scenario
A number of new broadband applications—HDTV
distribution, video downloadin , data center content
delivery, etc.—are feedin continued traffic rowth in
metro/core networks. Fi ure 5 shows actual (2008)
composition of network traffic. It illustrates that
broadband/video services (e. . video distribution,
online video recordin , YouTube, iPlayer...) already
dominate network traffic. Important future traffic
drivers will emer e from advanced applications like
telepresence and sensor networks. In other words,
we are only at the be innin of the expected
explosion in both underlyin traffic and the need for
more bandwidth for sophisticated applications.
Fi ure 5: Actual composition of network traffic (2008)
Re ardless of what the future may brin in terms of
new applications, the novel 100GbE-based transport
technolo y represents an important step towards
insurin the capacity and flexibility will be there to
accommodate overall traffic rowth requirements.
The proof can already be seen in the pioneerin
results on advanced 100Gb/s serial transmission
achieved by Bell Labs. This include records in hi h
capacity and spectral efficiency of Nx100Gb/s DWDM
transmission, and first real-time 100Gb/s field
transmission trials with live traffic.
BENEFIT: Bell Lab’s expertise in 100Gb/s assures
that operators are ready for the coming explosion in
bandwidth-hungry applications and services.
Contact:
Gustav. [email protected]
Sebastien.B[email protected]
[e-mail]
Optical Networks Domain
Alcatel-Lucent Bell Labs
Résumé:
Nous sommes à la veille d'une explosion des besoins en bande
passante, du fait de l'augmentation au niveau mondial du nombre
d'utilisateurs et du développement d'applications sophistiquées et
riches en contenus. Les systèmes 100 GbE constitueront
l'infrastructure dominante de prochaine génération qui sera
déployée pour faire face à cet accroissement. Les chercheurs
d’Alcatel-Lucent Bell Labs ont mis au point des concepts et réalisé
des essais en temps réel sur le terrain qui démontrent qu'ils
disposent de solides compétences dans le domaine de la
technologie 100 GbE. Grâce à ces compétences, ils permettent aux
opérateurs de se préparer efficacement afin de rester réactif, quelle
que soit l'évolution future du haut débit.
BB Internet/Residential Access
25%
27%
2%
11%
4%
2008
31%
Private Line
s
oice
ideo Distribution
BB Internet /SME Access
BB/ ideo
Live HDT ideo
Transmission over a
100Gb/s optical channel
on erizon national video
service network
Darmstadt Ladenburg Karlsruhe
8x107G TX
107G RX
Stuttgart
Opt.
PMDC
L = 79,7 km L = 95.0 km L = 75,4 km
Nx100G over 500 km DTAG field fiber link

Alcatel-Lucent Innovation Days – December 2008