🤖 AI Summary
This work addresses the computational bottlenecks in power, memory, and interconnect that hinder machine intelligence in the post-Moore era by proposing a bottleneck-driven photonic computing taxonomy that clarifies its advantageous application scenarios. Leveraging integrated photonics, cross-layer co-design, inverse design, and system-level modeling, the authors develop an electronic-photonic co-design automation (EPDA) methodology to realize a programmable, full-stack system adaptive to diverse workloads. This research provides a systematic roadmap toward a scalable and reproducible optoelectronic intelligent computing ecosystem, advancing photonic machine intelligence into a new phase of automation and practical deployment.
📝 Abstract
The exponential growth of machine-intelligence workloads is colliding with the power, memory, and interconnect limits of the post-Moore era, motivating compute substrates that scale beyond transistor density alone. Integrated photonics is emerging as a candidate for artificial intelligence (AI) acceleration by exploiting optical bandwidth and parallelism to reshape data movement and computation. This review reframes photonic computing from a circuits-and-systems perspective, moving beyond building-block progress toward cross-layer system analysis and full-stack design automation. We synthesize recent advances through a bottleneck-driven taxonomy that delineates the operating regimes and scaling trends where photonics can deliver end-to-end sustained benefits. A central theme is cross-layer co-design and workload-adaptive programmability to sustain high efficiency and versatility across evolving application domains at scale. We further argue that Electronic-Photonic Design Automation (EPDA) will be pivotal, enabling closed-loop co-optimization across simulation, inverse design, system modeling, and physical implementation. By charting a roadmap from laboratory prototypes to scalable, reproducible electronic-photonic ecosystems, this review aims to guide the CAS community toward an automated, system-centric era of photonic machine intelligence.