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Crafting leading-edge IT solutions for customers around the world
17
Fujitsu Laboratories and Fujitsu Limited
have developed a WDM system, shown
here, that processes a 10-gigabit optical
system in 32 wavelengths. Other note-
worthy R&D advances include successful
prototypes of an Optical Add/Drop
Multiplexer (OADM) and an Optical
Cross-connect System (OCS).
prospects are brighter. Post-NTT
breakup capital investment and the
spread of the Internet and intranets
are expected to spark demand for
communications systems.
In fiscal 1997 overseas demand ex-
panded substantially, particularly in
the United States and Asia, boosting
sales by 34%. In the United States,
demand for high-volume networks
grew as the popularity of CALS, elec-
tronic commerce and other net-
worked activities fueled growth in
traffic. Fujitsu’s U.S. communica-
tions subsidiary delivered a large
number of new optical transmission
systems. In China and other Asian
countries, where there was rapid
progress in expanding the communi-
cations infrastructure, demand for
digital communications systems rose
sharply. In addition, the company
supplied a 10-gigabit-per-second op-
tical communications network, the
world’s largest for a commercial ap-
plication, to a communications com-
pany in Australia. In the field of
broadband Asynchronous Transfer
Mode (ATM) switching, our
FETEX-150 ESP broadband
switches were installed by Hong
Kong Telecom to power its Interac-
tive Media Service. And in Spain,
Fujitsu captured an order from the
Galicia provincial government for an
ATM switching system. One factor
in selecting Fujitsu was its central
role in the North Carolina
information superhighway project in
the U.S.
In research and development, the
company devised a method to process
real-time transmission of the large vol-
umes of data required for moving im-
age and voice traffic: a 10-gigabit opti-
cal signal in 32 wavelengths, for a
total of 320 gigabits, that is among
the world’s largest. In addition, we
confirmed the ability of Wavelength
Division Multiplexing (WDM) to
add flexibility and expandability to ex-
isting optical networks. And in mobile
communications base stations, Fujitsu
was selected by NTT Docomo Co. to
provide experimental W-CDMA-type
systems, recognized as the world stan-
dard for next-generation mobile com-
munication systems that can
accommodate mobile multimedia.
R&D is progressing, with plans to
implement the system at an early date.