Fujitsu Adds 40gbps Transmission Capabilities to ROADM

Fujitsu Network Communications Inc. at NXTcomm said its FLASHWAVE 7500 ROADM now features 40gbps transmission capabilities.

The company said this means it has developed an advanced modulation scheme and per-wavelength variable dispersion compensation to create a fully integrated 40gbps ROADM. The solution offers up to 1.6 terabytes of capacity and an upgrade of existing 10gbps-based DWDM networks to support 40gbps wavelengths, according to Fujitsu.

“While many of our potential competitors have chosen a 40gbps solution that requires an external shelf and alien wavelengths to work, we believe that our fully integrated approach offers a far more compelling and manageable option for carriers,” said Bill Erickson, senior vice president of planning and development at Fujitsu Network Communications.

Fujitsu has created three new 40gbps units for the FLASHWAVE 7500 ROADM.

The 40gbps transponder provides a full band tunable network interface and a 40gbps client interface, primarily for interconnecting core routers.

The 40gbps muxponder combines four 10gbps client interfaces into one wavelength operating at 40gbps, providing more capacity expansion on constrained routes.

And the 40gbps regenerator unit eliminates back-to-back transponders on long spans, reducing cost and complexity.

Each unit plugs directly into the existing FLASHWAVE 7500 chassis with no changes required to support 40gbps wavelengths across existing metro/regional DWDM networks.

Fujitsu Network Communications Inc. http://us.fujitsu.com/telecom

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