TDK says it has achieved an optical breakthrough that will solve the biggest bottleneck of AI

TDK Claims Optical Breakthrough to Solve AI's Biggest Bottleneck

Japan's TDK Corporation claims to have made a breakthrough in optical technology. This technology can process data 10 times faster than existing electronic products and can address a key bottleneck hindering the development of generative artificial intelligence. The company said it has demonstrated the world's first "spin photodetector," which combines optical, electronic, and magnetic elements to achieve a response time of 20 picoseconds. It may replace existing semiconductor-based photodetectors used for inter-chip data transmission. Currently, data is transmitted between processors via electrical signals. However, as AI needs to process large amounts of data, a shift to optical technology is required because light travels faster. TDK plans to conduct further tests to confirm continuous light at ultra-high speeds, then provide samples to customers by the end of March 2026 and start mass production within the next 3 to 5 years.

—— Financial Times (Full Text Screenshot)

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