Hon Hai Research Institute breaks through 6G encryption bottleneck and develops MicroLED quantum random number generator

Recently, Hon Hai Research Institute (HHRI), a subsidiary of Hon Hai, successfully developed a "high-speed and scalable quantum random number generation (QRNG) based on indium gallium nitride (InGaN) micro-light emitting diode (Micro-LED) array". This technology significantly breaks through the transmission rate and integration limitations of traditional systems, providing excellent solutions for future encrypted communications and quantum security applications.

Schematic diagram of the QRNG experimental architecture, including Micro-LED, focusing lens and avalanche photodiode as a quantum entropy source (Image source: Hon Hai)

This technology has the advantages of high transmission rate, miniaturization and low power consumption. Its future application scope includes information security and encryption industry, high-speed computing, financial technology and other industries, especially the new generation communication industry. Micro-LED can not only transmit data, but also generate random numbers at the same time. It is expected to realize "transmission and encryption at the same time" system single chip, suitable for 6G and low-orbit satellite communications.

This breakthrough was achieved by Director Guo Haozhong, Director of the Semiconductor Institute of Hon Hai Research Institute and Chair Professor of Yangming Jiaotong University, Hong Yuheng, Group Leader of the Semiconductor Institute, Researcher Zhang Yunhan and the research team, together with top teams such as Professor Lin Junliang and Distinguished Professor Zou Zhiwei of Yangming Jiaotong University, and Chair Professor Boon S. Ooi of Rensselaer Polytechnic Institute (RPI) in the United States. The latest research paper "High-Speed ​​and Scalable Quantum Random Number Generation Using InGaN Micro-LEDs" was accepted by the world's authoritative journal "IEEE Photonics Journal". This study also thanks the National Science and Technology Council (NSTC) for its strong support.

This research uses the inherent quantum randomness of Micro-LED spontaneous radiation as a quantum entropy source to overcome the bottlenecks of low data transmission rate and difficult integration of traditional QRNG systems. The research team successfully achieved an ultra-high-speed random number generation rate of up to 12.5 Gb/s through a single blue, green Micro-LED, and 2x4 yellow Micro-LED array. Currently, leading commercial equipment mostly falls between 1Gbps and 3Gbps. This technology far exceeds the level of most commercial quantum random number generators currently on the market, and its multi-channel architecture is expected to increase the rate to 37.5 Gb/s in the future to meet the massive data encryption needs of the 6G era.

The generated random bit stream has been rigorously verified by the National Institute of Standards and Technology (NIST) SP800-22 statistical test suite, confirming that it has extremely high random quality and strong cryptographic applicability. Compared with laser systems that rely on bulky external optical components, this technology is not only smaller but also has great potential for chip integration.

This breakthrough in optoelectronic integration technology not only demonstrates Hon Hai's leading position in the fields of quantum information and optical communications, but its Micro-LED's advantages of low cost, low power consumption and small size lay a solid foundation for future single-chip multi-channel QRNG systems. We expect this technology to accelerate the popularization of quantum encrypted communications, artificial intelligence probabilistic learning models, and high-performance secure networks. (Source: Taiwan Economic Daily)

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