Optimization design for distinct types of multimode interferometers on a 220 nm SOI platform

Keru Chen; Manuel Arturo A. Méndez-Rosales; Andrew P. Knights; Yuri Grinberg

doi:10.1117/12.3021820

13 March 2024 Optimization design for distinct types of multimode interferometers on a 220 nm SOI platform

Keru Chen, Manuel Arturo A. Méndez-Rosales, Andrew P. Knights, Yuri Grinberg

Proceedings Volume PC12891, Silicon Photonics XIX; PC1289108 (2024) https://doi.org/10.1117/12.3021820
Event: SPIE OPTO, 2024, San Francisco, California, United States

Abstract

We present an angled multimode interferometer (AMMI) wavelength division (de)multiplexer on a 220 nm silicon-on-insulator platform, which is designed and operated for C-band wavelengths. The length of the AMMI is 855 µm, and can provide a channel spacing of 15 nm and a crosstalk suppression of 7 dB. Through inverse design, the length of the AMMI is reduced to 300 µm with a channel spacing at 8 nm; also to be operated at C band wavelengths. In addition, using shape optimization on a 2x2 multimode interferometer, the length of the device is reduced from 158 µm to 40 µm with improved performance in terms of transmission variation across the C-band.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Keru Chen, Manuel Arturo A. Méndez-Rosales, Andrew P. Knights, and Yuri Grinberg "Optimization design for distinct types of multimode interferometers on a 220 nm SOI platform", Proc. SPIE PC12891, Silicon Photonics XIX, PC1289108 (13 March 2024); https://doi.org/10.1117/12.3021820

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