The study of 3D FDTD modelling of large-scale Bragg gratings validated by experimental measurements

被引：1

作者：

Rahimof, Yasmin ^{[1
]}

Nechepurenko, Igor A. ^{[1
]}

Mahani, M. R. ^{[1
]}

Tsarapkin, Aleksei ^{[1
]}

Wicht, Andreas ^{[1
]}

机构：

[1] Ferdinand Braun Inst FBH, Gustav Kirchhoff Str 4, D-12489 Berlin, Germany

来源：

JOURNAL OF PHYSICS-PHOTONICS | 2024年 / 6卷 / 04期

关键词：

Bragg gratings; mECDL; optical simulations; FDTD simulations; NUMERICAL-ANALYSIS; LASER; SIMULATION; DISPERSION; SENSOR;

D O I：

10.1088/2515-7647/ad8824

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

This study discusses the importance of accurately calculating the optical response of Bragg gratings and the challenges associated with the 3D finite-difference time-domain (FDTD) method for simulating large-scale structures. The Bragg grating section in monolithic extended cavity diode lasers is of substantial size, making 3D FDTD simulations computationally challenging due to their complexity. In order to assess the accuracy of 3D simulations, we compare them with experimental results. Using a precise model design, involving a systematic analysis of simulation parameters, we obtain a good agreement between 3D FDTD simulations and the experimental results.

引用

页数：10

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