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20 January 2022 Optical true time delay based on multimode waveguide gratings
Wenjie Yuan, Jianji Dong, Xinliang Zhang
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Proceedings Volume 12154, 13th International Photonics and OptoElectronics Meetings (POEM 2021); 121540G (2022) https://doi.org/10.1117/12.2626093
Event: 13th International Photonics and OptoElectronics Meetings (POEM 2021), 2021, Wuhan, China
Abstract
Over the past two decades, integrated photonics has achieved unprecedented advancement owing to the development of optical devices. Among those devices, waveguide Bragg gratings are widely used for optical true time delay and optical filtering. In general, the integration of WBGs faces several challenges, including high insertion loss and manufacturing difficulties. In this article we propose and experimentally demonstrated a novel waveguide Bragg grating design based on multimode waveguide. The proposed device features low overall insertion loss of 3.1dB.
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Wenjie Yuan, Jianji Dong, and Xinliang Zhang "Optical true time delay based on multimode waveguide gratings", Proc. SPIE 12154, 13th International Photonics and OptoElectronics Meetings (POEM 2021), 121540G (20 January 2022); https://doi.org/10.1117/12.2626093
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KEYWORDS
Waveguides
Bragg gratings
Dispersion
Apodization
Wave propagation
Integrated photonics
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