Efficient Modelling of 3D-Printed Freeform Waveguides by a Dedicated Beam-Propagation Method (BPM) Based on Transformation Optics

被引：0

作者：

Foroutan-Barenji, Sina ^{[1
]}

Krimmer, Jonas ^{[1
]}

Freude, Wolfgang ^{[1
]}

Koos, Christian ^{[1
]}

机构：

[1] Karlsruhe Inst Technol KIT, Inst Photon & Quantum Elect IPQ, Engesserstr 5, D-76131 Karlsruhe, Germany

来源：

25TH EUROPEAN CONFERENCE ON INTEGRATED OPTICS, ECIO 2024 | 2024年 / 402卷

基金：

欧洲研究理事会;

关键词：

Photonic integrated circuit; photonic wire bond; transformation optics; beam propagation method;

D O I：

10.1007/978-3-031-63378-2_18

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

An efficient numerical algorithm is developed to model wave propagation in 3D-printed freeform waveguides, so-called photonic wire bonds (PWBs). The method utilizes transformation-optics (TO) in combination with curvilinear meshing to transform the original 3D-freeform PWB into a straight waveguide with anisotropic material properties. This waveguide is then modeled using an anisotropic full-vectorial beam propagation method (BPM). We demonstrate the viability of our TO-BPM algorithm and benchmark its performance against a finite-difference-time-domain (FDTD) method. Our approach shows a 600-fold reduction of the computation time in combination with a mean percentage error of 3.2% in power transmission simulation relative to the FDTD.

引用

页码：105 / 110

页数：6

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