Laser Diodes for 5G LTE Base Stations and Server Racks

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Looking at the increasing demand for next generation of high bandwidth data center and communication networks, Renesas has introduced a series of directly modulated laser (DML) diodes that allow for high-speed optical communications and stable operation in harsh environments up to 95 degrees Celsius for next-gen mobile and IoT networks.

The RV2X6376A Series delivers 25 Gbps x four wavelengths as the light source in 100 Gbps optical transceivers that enable high-speed communications inside 4.9G and 5G LTE base stations, and between data center routers and servers.

Complementing the commercial temperature grade (-5°C to 75°C) NX6375AA Series used in data centers, the new RV2X6376A Series not only provides the ruggedness and reliability base stations require but also offers data center customers an upgrade to the wider industrial temperature range when the additional margin is needed, Renesas noted.

According to Cisco Visual Networking Index (VNI), global mobile data traffic should grow 44 percent annually from 11,000 Petabytes/month in 2017 to 48,000 Petabytes/month in 2021. To service this hyper-growth, base station manufacturers are transitioning to interim 4.9G and higher throughput, low-latency 5G technology.

The RV2X6376A Series are designed into compact 100 Gbps QSFP28 optical transceiver modules that use conventional NRZ modulation. They 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 RV2X6376A Series offers manufacturers the highest reliability solution for rugged outdoor 4.9G and 5G base station applications,” said Diwakar Vishakhadatta, Vice President for High-Speed Optical Communications and Wireless Products at Renesas Electronics Corporation. “The bare die diodes’ wide temperature range and DML technology allow transceiver designers to achieve significantly lower systems cost than current designs using EML diodes.”

Samples of the bare die RV2X6376A 25 Gbps laser diodes are available now and mass production starts today.

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Mpre information: https://www.renesas.com/en-hq/about/press-center/news/2018/news20180313.html

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