Paper
21 December 2023 Inverse design of high extinction ration narrow-band filters based on silicon nitride multimode waveguide Bragg gratings
Nannan Ning, Zhujun Wei, Qikai Huang, Yuehai Wang, Jianyi Yang, Hui Yu
Author Affiliations +
Proceedings Volume 12966, AOPC 2023: AI in Optics and Photonics ; 129662E (2023) https://doi.org/10.1117/12.3009299
Event: Applied Optics and Photonics China 2023 (AOPC2023), 2023, Beijing, China
Abstract
A silicon nitride narrow-band multimode waveguide Bragg grating (NBMWBG) optical filter with high SLSR and low insertion loss based on the inverse design of MWBG is demonstrated. The complementary lateral-misalignment modulation apodization is used to create physically grating structure of NBMWBG. The insertion loss, 3-dB bandwidth and SLSR of proposed NBMWBG are measured to be 0.9 dB, 0.8 nm and 32 dB, respectively. Keywords: Silicon nitride, Bragg grating, Narrow-band,
(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.
Nannan Ning, Zhujun Wei, Qikai Huang, Yuehai Wang, Jianyi Yang, and Hui Yu "Inverse design of high extinction ration narrow-band filters based on silicon nitride multimode waveguide Bragg gratings", Proc. SPIE 12966, AOPC 2023: AI in Optics and Photonics , 129662E (21 December 2023); https://doi.org/10.1117/12.3009299
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KEYWORDS
Optical filters

Bragg gratings

Waveguides

Design and modelling

Silicon nitride

Spectral response

Modulation

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