MediaTek recently announced a collaboration with Microsoft Research to develop a groundbreaking optical technology aimed at solving a major problem in AI data centers.
As AI models become more powerful, the data centers that run them are consuming enormous amounts of electricity. A key bottleneck is the copper wiring used to connect thousands of servers, which is hitting its physical limits in both power efficiency and data transmission distance. This energy crunch is a serious challenge for hyperscalers like Microsoft, Google, and Amazon.
This is where the new partnership comes in, combining expertise from both sides.
First, Microsoft Research laid the theoretical groundwork with its 'MOSAIC' program. Instead of complex lasers, MOSAIC uses simple, reliable microLEDs in a "wide-and-slow" architecture. This design aims for the best of both worlds: the reliability of copper cables but with up to 10 times the reach and significantly lower power consumption.
Second, MediaTek brings the manufacturing and hardware expertise. The company has been strategically shifting its focus towards data center components, developing its own microLED light sources and working closely with manufacturing giant TSMC on advanced chip packaging technologies like co-packaged optics (CPO).
By fusing Microsoft's MOSAIC concept with MediaTek's hardware capabilities, this collaboration creates a clear path to a real-world product. The numbers are compelling: this microLED technology could slash the power used by a single connection by over 90%, from around 30 watts to just 1.6 watts. In terms of energy per bit of data (pJ/bit), the improvement is between 80% and 90%.
This innovation arrives at a critical time. The market for high-speed data center connections (800G and faster) is expected to more than double in a single year. While competitors like Broadcom and Marvell are also racing to create more efficient interconnects, the MediaTek-Microsoft alliance is betting on microLEDs as a unique and potentially superior solution. This partnership elevates MediaTek's data center ambitions from a plan to a tangible product in the pipeline.
- Glossary
- Active Optical Cable (AOC): An optical fiber cable that uses electrical-to-optical conversion on the cable ends to improve speed and distance performance.
- pJ/bit (Picojoules per bit): A unit of energy efficiency measuring the energy consumed to transmit one bit of data. A lower number is better.
- Hyperscaler: A large-scale cloud service provider that operates massive data centers, such as Microsoft (Azure), Amazon (AWS), and Google (GCP).