Journal
JOURNAL OF LIGHTWAVE TECHNOLOGY
Volume 39, Issue 4, Pages 1010-1019Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JLT.2021.3050083
Keywords
Photonics; Time-domain analysis; Optimization; Optical sensors; Inverse problems; Finite difference methods; Topology; Deep learning; generative neural networks; integrated photonics; inverse design; nanophotonics; neural networks
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This article explores three models for designing nanophonic power splitters using deep neural networks, including a forward regression model, an inverse regression model, and a generative network. These models demonstrate how deep learning can be applied to optimize the design of nanophotonic devices.
Deep learning is now playing a major role in designing photonic devices, including nanostructured photonics. In this article, we investigate three models for designing nanophonic power splitters with multiple splitting ratios. The first model is a forward regression model, wherein the trained deep neural network (DNN) is used within the optimization loop. The second is an inverse regression model, in which the trained DNN constructs a structure with the desired target performance given as input. The third model is a generative network, which can randomly produce a series of optimized designs for a target performance. Focusing on the nanophotonic power splitters, we show how the devices can be designed by these three types of DNN models.
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