Fujitsu delivers 1.76-Tbit/sec DWDM system for Crosswave Communications' Tokyo-Nagoya-Osaka Backbone

April 3, 2002--Fujitsu Limited today announced that it has delivered its FLASHWAVE 7700 DWDM long-haul optical transport system to Crosswave Communications Inc. for use in the company's Tokyo-Nagoya-Osaka backbone network.
April 3, 2002
2 min read

Fujitsu Limited today announced that it has delivered its FLASHWAVE 7700 DWDM long-haul optical transport system to Crosswave Communications Inc. for use in the company's Tokyo-Nagoya-Osaka backbone network.

Fujitsu's FLASHWAVE 7700 is capable of transmitting 1.76 Tbits/sec over vast distances--without regeneration, says the company--and the installation for Crosswave Communications is the first FLASHWAVE 7700 deployment in Japan.

The FLASHWAVE 7700 is a next-generation DWDM transmission and optical add/drop platform that provides up to 176 channels, each capable of carrying 10 Gbits/sec of traffic. The system uses 88 channels in each of two bands of the transmission spectrum, the C and L bands, using 50-GHz spacing between each channel. The 1.76-Tbits/sec transmission capacity is equivalent to simultaneously distributing MPEG4 coded high-definition video to approximately 34,000 users, say Fujitsu representatives.

Crosswave Communications, with a network linking its data centers in Japan, offers a range of network services, focusing in particular on wide-area LAN and high-speed backbone service. On April 1, the company began a commercial rollout of its new Gigabit Ether Backbone Service. The FLASHWAVE 7700 platform is being used to strengthen the approximately 1,400-km (875-mile) backbone network that links its data centers in Tokyo, Nagoya, and Osaka to handle the expected increase in data traffic.

Sign up for Lightwave Newsletters
Get the latest news and updates.