TOKYO -- NEC Corporation announced today that it has developed the world's smallest optical transceivers, which support Dense Wavelength Division Multiplexing (DWDM) devices with a transmission speed of 2.5Gbps. Sale of the new transceiver commenced today. Boasting the world's smallest dimensions of 13.8 (L) x 56.5 (W) x 8.5mm (D), which meet industrial standards, the new product significantly contributes to the miniaturization of DWDM devices as it supports both transmitting and receiving functions. This newly developed transceiver also enables the provision of the world's first model with optical power of 4 milliwatt, in addition to the standard model that has optical power of 1 milliwatt. Furthermore, NEC plans to release a new product in early summer that achieves a transmission distance of 480km, 4 times that of current models.

The principal features of the new product include:

Recently, the spread of DWDM devices has been growing accompanied by an increase in the volume and speed of data transmission. Although DWDM devices were only conventionally used for long distance transmission, their range of use has recently expanded to the metro network. NEC developed this new product in response to market needs for a more compact DWDM device with high optical power. This miniaturization was accomplished by combining the transmitting and receiving functions through high density mounting and reducing cooling parts for low power consumption. High power output has been realized by strengthening the emission power of the laser diodes and increasing the coupling ratio of the optical connector parts. NEC has participated in the development of industry standards for optical modules for DWDM device use from an early stage, enabling it to develop a highly advanced model that meets current industry standards and propels it ahead of its competitors.

NEC Corp. (Tokyo: 6701)