Polar Light Technologies and Foxconn team up on MicroLED optical interconnects for AI data centers

Nov 12, 2026
The Swedish MicroLED developer's first optical interconnect agreement will focus on green 5-micron MicroLEDs, which it already makes on a pilot line.

Swedish MicroLED developer Polar Light Technologies has signed its first cooperation agreement on optical interconnects, with Foxconn Technology Co., a company in the Foxconn group, according to a press release. Optical interconnects use light to move data between chips and systems, a growing bottleneck in AI data centers.

The work will focus on green MicroLEDs at 5 micrometres, the same range Polar Light already produces on its pilot line. The company says its pyramid-shaped MicroLEDs can be built at very small sizes, cut the piezoelectric effect by 40% compared with conventional flat LEDs to allow higher data rates, couple efficiently into optical fibre and integrate with CMOS chips.

"The same fast, efficient, CMOS-integrated emitters can help AI data centers overcome interconnect limits," said CEO Oskar Fajerson. Polar Light, based in Linköping, has so far focused on MicroLEDs for displays. The release does not give financial terms or a product timeline.

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