栅栏
光学
极化(电化学)
绝缘体上的硅
物理
衍射光栅
材料科学
硅
光电子学
化学
物理化学
作者
Peng Sun,Thomas Van Vaerenbergh,Sean Hooten,Raymond G. Beausoleil
出处
期刊:Optics Express
[Optica Publishing Group]
日期:2023-01-12
卷期号:31 (3): 4884-4884
被引量:6
摘要
We have designed a polarization-splitting grating coupler (PSGC) in silicon-on-insulator (SOI) that has 1.2 dB peak loss in numerical simulations, which is the best simulated performance of PSGCs without a bottom reflector to the best of our knowledge. Adjoint method-based shape optimization enables us to explore complex geometries that are intractable with conventional design approaches. Physics-based process-independent knowledge of PSGCs is extracted from the adjoint optimization and can be transferred to other platforms with a minimum of effort.
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