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Designing rectangular surface Bragg gratings using machine learning models

M.R. Mahani, I. Nechepurenko, Y. Rahimof and A. Wicht

Published in:

Int. Conf. on Numerical Simulation of Optoelectronic Devices (NUSOD), Turin, Italy, Sep 18-21, ISBN 979-8-3503-1429-8, pp. 69-70 (2023).


In this paper, we demonstrate a possibility to predict the characteristics of semiconductor-based Bragg gratings using machine learning methods. We perform 2D simulations of the Bragg gratings and calculate reflectance to create a database. With obtained data, we train ML models to predict the shape of the upper part of the main peak of reflectance. We compare the performance of the widely used neural network with various different models on our data and demonstrate the high accuracy of the optimized XGBoost method.

Ferdinand-Braun-Institut (FBH), Leibniz-Institut für Höchstfrequenztechnik, Gustav-Kirchhoff-Str. 4, 12489 Berlin, Germany

Index Terms:

Bragg gratings, FDTD simulations, machine learning, optimized XGBoost.

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