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Quantized Inverse Design for Photonic Integrated Circuits

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Original languageEnglish
Pages (from-to)5080-5086
Number of pages7
JournalACS Omega
Volume10
Issue number5
Early online date27 Jan 2025
Publication statusPublished - 11 Feb 2025

Abstract

The inverse design of photonic integrated circuits (PICs) presents distinctive computational challenges, including their large memory requirements. Advancements in the two-photon polymerization (2PP) fabrication process introduce additional complexity, necessitating the development of more flexible optimization algorithms to enable the creation of multimaterial 3D structures with unique properties. This paper presents a memory efficient reverse-mode automatic differentiation framework for finite-difference time-domain (FDTD) simulations that can handle complex constraints arising from novel fabrication methods. Our method is based on straight-through gradient estimation that enables nondifferentiable shape parametrizations. We demonstrate the effectiveness of our approach by creating increasingly complex structures to solve the coupling problems in PICs. The results highlight the potential of our method for future PIC design and practical applications.

Keywords

    physics.optics, physics.comp-ph

ASJC Scopus subject areas

Cite this

Quantized Inverse Design for Photonic Integrated Circuits. / Schubert, Frederik; Mahlau, Yannik; Bethmann, Konrad et al.
In: ACS Omega, Vol. 10, No. 5, 11.02.2025, p. 5080-5086.

Research output: Contribution to journal › Article › Research › peer review

Schubert, F, Mahlau, Y, Bethmann, K, Hartmann, F, Caspary, R, Munderloh, M, Ostermann, J & Rosenhahn, B 2025, 'Quantized Inverse Design for Photonic Integrated Circuits', ACS Omega, vol. 10, no. 5, pp. 5080-5086. https://doi.org/10.1021/acsomega.4c10958, https://doi.org/10.48550/arXiv.2407.10273
Schubert, F., Mahlau, Y., Bethmann, K., Hartmann, F., Caspary, R., Munderloh, M., Ostermann, J., & Rosenhahn, B. (2025). Quantized Inverse Design for Photonic Integrated Circuits. ACS Omega, 10(5), 5080-5086. https://doi.org/10.1021/acsomega.4c10958, https://doi.org/10.48550/arXiv.2407.10273
Schubert F, Mahlau Y, Bethmann K, Hartmann F, Caspary R, Munderloh M et al. Quantized Inverse Design for Photonic Integrated Circuits. ACS Omega. 2025 Feb 11;10(5):5080-5086. Epub 2025 Jan 27. doi: 10.1021/acsomega.4c10958, 10.48550/arXiv.2407.10273
Schubert, Frederik ; Mahlau, Yannik ; Bethmann, Konrad et al. / Quantized Inverse Design for Photonic Integrated Circuits. In: ACS Omega. 2025 ; Vol. 10, No. 5. pp. 5080-5086.
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AU - Caspary, Reinhard

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AU - Ostermann, Jörn

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