Adjoint optimization of polarization-splitting grating couplers

被引：8

作者：

Sun, Peng ^{[1
,2
]}

Van Vaerenbergh, Thomas ^{[3
]}

Hooten, Sean ^{[1
]}

Beausoleil, Raymond ^{[1
]}

机构：

[1] Hewlett Packard Labs, 820 N McCarthy Blvd, Milpitas, CA 95035 USA

[2] Currently NVIDIA Corp, 2788 San Tomas Expy, Santa Clara, CA 95051 USA

[3] HPE Belgium, Hewlett Packard Labs, B-1831 Diegem, Belgium

来源：

OPTICS EXPRESS | 2023年 / 31卷 / 03期

关键词：

Polarization;

D O I：

10.1364/OE.477532

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

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.(c) 2023 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement

引用

页码：4884 / 4898

页数：15

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