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Programmable Integrated Silicon Photonics Waveguide Meshes: Optimized designs and control algorithms
摘要： Programmable Integrated Photonics is a recent area of research that aims to integrate a very-large scale of reconfigurable photonic components to enable flexible and versatile photonic integrated circuits. In this paper we review the state of the art of general-purpose waveguide mesh arrangements with a special focus on those that allow the synthesis of optical feedback loops. Moreover, we propose for the first time, a new design approach to generate waveguide mesh patterns with equally-oriented components. This innovation is of special relevance to improve performance and to mitigate one of the main scalability limitations, the integration density. The paper finalizes with an introduction to control algorithms for waveguide mesh arrangements based on derivative methods and non-derivative methods. These control methods provide a proof for the self-reconfiguration of large-scale waveguide mesh arrangements. In particular, we apply the computational optimization algorithms to program a hexagonal waveguide mesh to emulate a 1x8 beamforming network and an optical filter based on an unbalanced MZI design. All in all, the paper comprises recipes to achieve truly practical software-defined photonic integrated circuits.
关键词： reconfigurable circuits,signal processing,programmable photonics,integrated circuits,control algorithms
更新于2025-09-11 14:15:04
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[IEEE 2019 IEEE Photonics Society Summer Topical Meeting Series (SUM) - Ft. Lauderdale, FL, USA (2019.7.8-2019.7.10)] 2019 IEEE Photonics Society Summer Topical Meeting Series (SUM) - ME2.2 - A Graph-based Design and Programming Strategy for Reconfigurable Photonic Circuits
摘要： We have developed a graph representation of programmable photonic mesh circuits that can be used by pathfinding algorithms. We modified the Dijkstra algorithm to observe only physically possible connections in the graph, demonstrating flexible rerouting in case of node malfunction.
关键词： Programmable Photonics,Graph Theory,Customized Dijkstra
更新于2025-09-11 14:15:04