Renesas Semiconductor Laser Diodes: NX6375AA Series
Renesas Semiconductor Laser Diodes: NX6375AA Series

TOKYO, Japan, October 25, 2016 – Renesas Electronics Corporation (TSE:6723), a premier supplier of advanced semiconductor solutions, today announced the availability of the new series of semiconductor laser diodes, the “NX6375AA Series”. The newly developed direct modulation distributed feedback laser diodes (DFB LDs, Note 1) support 25 Gbps × four wavelengths operation as the light sources in 100 Gbps optical transceivers that are used for communication between servers and routers installed in data centers.


The NX6375AA Series enables system developers to develop high-speed optical transceivers and optical modules that are highly reliable even in high-temperature environments, and the new series can be implemented in the servers and routers used in data centers. The NX6375AA Series is available for mass production.


Recently, due to the popularity of cloud computing for the IoT era, the scale and processing capacity of data centers that are connected to the internet and handle large amounts of data are expected to increase at an annual rate of 59 percent (Note 2). In the optical transceivers used for communication between the servers and routers in the data centers in that environment, there is now demand for increased speeds in the transmission rates, and it is expected that the 100 Gbps systems, which will replace the current mainstream 40 Gbps systems, will see an annual growth rate of 75 percent (Note 2).


However, there is concern that the increasing system heat generation, which is proportional to the communication speed, could make the system operating state become unstable, therefore, achievement of both stable operations in high-temperature environments and higher communications speeds has become a major issue for optical transceivers.


Renesas launched its semiconductor LDs for this area starting in 2004, when the communications rate was 10 Gbps. The new NX6375AA LD Series support 100 Gbps systems, which are expected to become the mainstream in communications systems in the future and by resolving the issues in this area as described above, will contribute to higher speeds and increased reliability in user optical transceiver devices.