The study of 3D FDTD modelling of large-scale Bragg gratings validated by experimental measurements
Y. Rahimof, I.A. Nechepurenko, M.R. Mahani, A. Tsarapkin and A. Wicht
Published in:
J. Phys. Photonics, vol. 6, no. 4, pp. 045024, doi:10.1088/2515-7647/ad8824 (2024).
Abstract:
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.
Ferdinand-Braun-Institut (FBH), Gustav-Kirchhoff-Straße 4, 12489 Berlin, Germany
© 2024 The Author(s). Published by IOP Publishing Ltd.
Original Content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence.
Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
Full version in pdf-format.