Innovation paves the way for a high-volume, silicon photonics 400G/lane platform to meet next-generation 3.2T optical communication architectures for datacom and AI applications.SANTA CLARA, Calif., and MIGDAL HAEMEK, Israel, March 12 , 2025 — OpenLight, the world leader in custom PASIC chip design and manufacturing, and Tower Semiconductor (NASDAQ/TASE: TSEM), the leading foundry of high-value analog semiconductor solutions, today announced the successful demonstration of the 400G/lane modulator on Tower’s commercially available, integrated silicon photonics platform, PH18DA, achieving a better than 3.5db extinction ratio using the industry-standard PAM-4 modulation format and at a drive voltage of 0.6 volts peak-to-peak.
The integrated silicon photonics demonstration is designed to support next-generation 400G/lane optical communication architectures, offering a scalable solution from 100G to 200G to 400G to fill the growing demand for high-speed data transfer in cloud computing, AI and ML applications.
The other added benefit of using the same design is the proven high-reliability performance and the ability to use flip chip processes when packaging into an integrated optical sub-assembly.” "We’re pleased to collaborate with OpenLight, leveraging their cutting-edge silicon photonics technology to create a cost-effective approach to support 400G/lane.
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