ECOC 2007, BERLIN,
September 19 /PRNewswire-FirstCall/ -- Alcatel-Lucent (Euronext
Paris and NYSE:
ALU) today confirmed its technical and scientific
leadership in optical communications research with three
post-deadline papers accepted at the European Conference
and Exhibition on Optical Communication (ECOC) in
Berlin. These papers are part of a total 38 papers
presented at the conference by Alcatel-Lucent Bell Labs
and Research & Innovation researchers, successfully
demonstrating new advances in optical transmission and
paving the way for the future introduction of 100 Gbit/s
Ethernet optical networks.
The major breakthroughs
are: the transmission of 12.8 Terabit/s of data through
a single optical fiber over a record distance of 2,550
km, a precursor for long-haul transmission at 100 Gbit/s
per wavelength; a pioneering 8 Terabit/s data
transmission using a simple and cost effective 100 Gbit/s
channel modulation; and the first hybrid DWDM
transmission of 100 Gbit/s and 40 Gbit/s channels in the
same system, demonstrating migration and coexistence
capabilities of both.
"Positive results in
these advanced tests further demonstrates our commitment
to design the most efficient, highest bandwidth systems
possible for the benefit of our customers," said Romano
Valussi, President of Alcatel-Lucent's optics
activities. "The 100 Gbit/s achievement further confirms
our technology leadership in optical networking as a
critical enabler of the IP network transformation."
The first experiment
was achieved by Alcatel-Lucent's researchers in
Villarceaux, France. They demonstrated a 12.8 Terabit/s
transmission on a single optical fiber, over the record
distance of 2,550 km. As no previously reported
experiment had achieved more than 10 Terabit/s were
beyond 300 km, these results represent an improvement by
a factor of more than 8. In this experiment 160
wavelength-division multiplexed (WDM) channels were
modulated at 80 Gbit/s each. The system involved several
innovations, namely polarization division multiplexing,
multi-level optical modulation, coherent detection and
powerful electrical signal processing.
The second result was
achieved by Alcatel-Lucent's researchers from Stuttgart
and Villarceaux. They realized a 8 Terabit/s Wavelength
Division Multiplexing (WDM) transmission with 80
channels, each modulated at 100 Gbit/s, transmitted over
520 km. Such a density represents a breakthrough, as the
channels were very densely packed, separated by no more
than 100 GHz from each other. This modulation is a
simple, robust and cost-effective way to generate and
transmit a 100 Gbit/s bandwidth by channel.
In the third experiment
Bell Labs researchers in New Jersey demonstrated the
first hybrid DWDM transmission of 100-Gbit/s and
40-Gbit/s channels in the same system, achieving a
record overall spectral efficiency of 1.4 bits/s/Hz.
This experiment is significant in that it demonstrates a
feasible upgrade path for DWDM transport equipment to
support 100-Gbit/s Ethernet channels using existing
50-GHz channel plans. These results are an extension of
Alcatel-Lucent's recent successful demonstration of a
similar capacity upgrade - where researchers replaced
10-Gbit/s OOK channels with 40-Gbit/s DQPSK channels,
co-existing with 40-Gbit/s DBPSK channels, in the same
system (post-deadline paper at OFC/NFOEC 2007).
For more information
about ECOC:
http://www.ecocexhibition.com
About Alcatel-Lucent
Alcatel-Lucent (Euronext
Paris and NYSE: ALU) provides solutions that enable
service providers, enterprises and governments
worldwide, to deliver voice, data and video
communication services to end-users. As a leader in
fixed, mobile and converged broadband networking, IP
technologies, applications, and services, Alcatel-Lucent
offers the end-to-end solutions that enable compelling
communications services for people at home, at work and
on the move. With operations in more than 130 countries,
Alcatel-Lucent is a local partner with global reach. The
company has the most experienced global services team in
the industry, and one of the largest research,
technology and innovation organizations in the
telecommunications industry. Alcatel-Lucent achieved
adjusted proforma revenues of Euro 18.3 billion in 2006
and is incorporated in France, with executive offices
located in Paris. (All figures exclude impact of
activities transferred to Thales).
