Fujitsu Network Communications has introduced its second-generation 40Gbps interfaces for its FLASHWAVE 7500 Reconfigurable Optical Add/Drop Multiplexer (ROADM).
The company claims that by utilising an Adaptive Differential Phase Shift Keying (ADPSK) modulation scheme and Variable Dispersion Compensation (VDC), the new interfaces enable network growth up to 1.6Tbps of capacity to help customers meet demands for increased speed and bandwidth.
Bill Erickson, senior vice president of planning and development at Fujitsu Network Communications, said: “With the introduction of our second generation 40Gbps units we’re improving optical performance and reducing the physical size of the 40Gbps units by 50% as compared to our first generation 40Gbps cards previously announced in June 2007.”
Ron Kline, research director of network infrastructure at Ovum, said: “40Gbps is one of the highest Optical Networking (ON) growth areas as consumer demand, driven by video, is stressing network capacities. The 40Gbps market will grow nearly 90% in 2009 as a new generation of integrated muxponders becomes available and 4x10Gbps applications dominate deployments.”
In addition, Fujitsu informed that three new 40Gbps units are available for the FLASHWAVE 7500 ROADM, including the 40Gbps Transponder, 4:1 Muxponder and 40Gbps Regenerator. Also, a VDC device is incorporated into each module, permitting 40Gbps transmission over wavelengths originally designed to have a maximum speed of 10Gbps.
All units support ITU G.709 Optical Transport Network (OTN) standards for mapping client signals, optical layer performance monitoring, alarm indication signals and Enhanced Forward Error Correction (EFEC).
