Data Center and Critical Infrastructure

DML Diodes Enable High-speed Optical Communications and Stable Operation in Harsh Environments

12 March 2018

The RV2X6376A DML diodes. Source: Renesas The RV2X6376A DML diodes. Source: Renesas Renesas Electronics has introduced a series of directly modulated laser (DML) diodes to allow for high-speed optical communications and stable operation in harsh environments up to 95 degrees Celsius and down to minus 40 degrees Celsius.

Renesas introduced the new series at this week's 2018 Optical Fiber Communication Conference and Exposition (OFC) being held in San Diego.

The DMI diodes deliver 25 Gbps by four wavelengths as the light source in 100 Gbps optical transceivers for high-speed communications inside 4.9G and 5G LTE base stations and between data center routers and servers.

The RV2X6376A series are designed into compact 100 Gbps QSFP28 optical transceiver models that use conventional NRZ modulation. The diodes are compatible with the Coarse Wavelength Division Multiplexing (CWDM4) standard that specifies four lanes of 25 Gbps optically multiplexed onto and demultiplexed from duplex single mode fiber.

The diodes are currently sampling and mass production is expected to begin shortly.

To contact the author of this article, email

Powered by CR4, the Engineering Community

Discussion – 0 comments

By posting a comment you confirm that you have read and accept our Posting Rules and Terms of Use.
Engineering Newsletter Signup
Get the Engineering360
Stay up to date on:
Features the top stories, latest news, charts, insights and more on the end-to-end electronics value chain.
Weekly Newsletter
Get news, research, and analysis
on the Electronics industry in your
inbox every week - for FREE
Sign up for our FREE eNewsletter