Phase-Injected Topology Optimization for Scalable and Interferometrically Robust Photonic Integrated Circuits
Phase-Injected Topology Optimization for Scalable and Interferometrically Robust Photonic Integrated Circuits
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DOI：
10.1021/acsphotonics.2c01016
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发表时间：
2022-11-04
期刊：
影响因子：
7
通讯作者：
Ralph, Stephen E.
中科院分区：
文献类型：
--
作者：
Hammond, Alec M.;Slaby, Joel B.;Ralph, Stephen E.
我们提出了一种新的器件设计方法，在商业代工平台上生产干涉稳健的光子集成电路。这种新的方法，我们称之为相位注入拓扑优化，利用互惠性来减少计算负载和条件相应的优化问题，并与现有的基于伴随的设计框架兼容。我们实验验证我们的方法，设计，制造和测试的90度的光混合器，在C波段工作，占地仅8亩× 8亩米。我们在三个不同的晶片上测量了我们的设备，
We present a novel device-design methodology that produces interferometrically robust photonic integrated circuits on commercial foundry platforms. This new approach, which we call phase-injected topology optimization, leverages reciprocity to both reduce the computational load and condition the corresponding optimization problem and is compatible with existing adjoint-based design frameworks. We experimentally validate our methodology by designing, fabricating, and testing a 90 degrees optical hybrid that operates over the C-band and occupies just 8 mu m x 8 mu m. We measured our device across three different wafers and observe