作者
Junhyeong Kim, Berkay Neseli, Jae-yong Kim, Jinhyeong Yoon, Hyeonho Yoon, Hyo-Hoon Park, Hamza Kurt
发表日期
2023/1/16
期刊
Optics Express
卷号
31
期号
2
页码范围
2049-2060
出版商
Optica Publishing Group
简介
We proposed inverse-designed nanophotonic waveguide devices which have the desired optical responses in the wide band of 1450-1650?nm. The proposed devices have an ultra-compact size of just 1.5?µm × 3.0?µm and are designed on a silicon-on-insulator (SOI) waveguide platform. Individual nano-pixels with dimensions of 150?nm × 150?nm were made of either silicon or silicon dioxide, and the materials for the 200 total cells were determined using a trained deep neural network. While training the two networks, the hyperparameter optimization method was applied to make the training process efficient. We then fabricated the proposed devices using a CMOS-compatible fabrication process, and experimentally verified the fabricated device performance.
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J Kim, B Neseli, J Kim, J Yoon, H Yoon, HH Park… - Optics Express, 2023