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Direct on-Chip Optical Communication between Nano Optoelectronic Devices
ACS Photonics ( IF 6.5 ) Pub Date : 2025-01-21 , DOI: 10.1021/acsphotonics.4c01375
Vidar Flodgren, Abhijit Das, Joachim E. Sestoft, David Alcer, Thomas K. Jensen, Hossein Jeddi, Håkan Pettersson, Jesper Nygård, Magnus T. Borgström, Heiner Linke, Anders Mikkelsen

On-chip optical communication between individual nano optoelectronic components is important to reduce the footprint and improve energy efficiency of photonic neuromorphic solutions. Although nanoscale photon emitters and receivers have been reported separately, communication between them remains largely unexplored. We demonstrate direct on-chip directional broadcasting of light between individual InP nanowire photodiodes on silicon. The performance of multiple wire-to-wire communication circuits is mapped, demonstrating robust performance with up to 5 bit resolution as needed in biological networks and a minimum component driving power for continuous operation of 0.5 μW which is below that of conventional hardware. The results agree well with theoretical modeling that allows us to understand network performance limits and identify where significant improvements could be achieved. We estimate that an energy per operation of ∼1 fJ and signal fan-out from one emitter to hundreds of other nodes is possible. We find that the nanowire circuit performance parameters can satisfy the quantitative requirements to run the tasks of neural nodes in a bioderived neural network for autonomous navigation.

中文翻译:


纳米光电器件之间的直接片上光通信



单个纳米光电元件之间的片上光通信对于减少光子神经形态解决方案的占用空间和提高能源效率非常重要。尽管纳米级光子发射器和接收器已单独报道,但它们之间的通信在很大程度上仍未得到探索。我们演示了硅上各个 InP 纳米线光电二极管之间的直接片上定向光广播。图中描绘了多个线对线通信电路的性能,展示了生物网络中所需的高达 5 位分辨率的稳健性能,以及连续运行的最小组件驱动功率 0.5 μW,低于传统硬件。结果与理论模型非常吻合,这使我们能够了解网络性能限制并确定可以实现重大改进的地方。我们估计每次操作的能量为 ∼1 fJ,并且信号从一个发射器扇出到数百个其他节点是可能的。我们发现纳米线电路性能参数可以满足在生物衍生神经网络中运行神经节点任务的定量要求,以实现自主导航。
更新日期:2025-01-21
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