Mitsubishi Electric Corporation has announced that it will launch a 10Gbps optical transmitter for high-speed, large-volume data transmission between base stations and central offices in radio access networks within mobile telecommunication systems. The module, which comprises an electro-absorption modulator laser (EML) and a transmitter optical sub-assembly (TOSA), reduces fluctuations in optical wavelengths for dense wavelength-division multiplexing (DWDM). Mitsubishi Electric will commercially launch its new EML-TOSA on February 1. The module, which complies with the 10 Gbps Miniature Device Multi Source Agreement (XMD-MSA), features a cylindrical can-type-not box-type-profile suitable for mass production. In LTE and LTE-Advanced fourth-generation (4G) mobile systems, DWDM has attracted attention as a means of reducing the power consumption of optical transmitter modules that transmit data between base stations and central offices.

Mitsubishi Electric's new Can-type EML-TOSA is compatible with DWDM and its TOSA can operate in a maximum temperature of up to 95 degrees Celsius. The module features: it withstands high temperatures to optimal EML structure; reduces power consumption of thermoelectric cooler by approximately 50% compared to Mitsubishi Electric's current FU-612REA model; optimal EML structure reduces fluctuations in optical wavelengths due to operating temperatures; and combines highly compact configuration with capability to operate at temperatures of up to 95 degrees Celsius.