Wavelength-insensitive and Lossless 50:50 Directional Coupler Based on Silicon Bent Waveguides

A broadband 50:50 bent directional coupler, based on low loss bends, is experimentally demonstrated to significantly reduce coupling variation from 0.369 in the traditional directional coupler to just 0.076 over an 80 nm wavelength range, showcasing a substantial 4.85 times less coupling variation.

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Bibliographic Details
Main Authors: El-Saeed, Ahmed H., Elshazly, Alaa, Kobbi, Hakim, Magdziak, Rafal, Lepage, Guy, Marchese, Chiara, Bipul, Swetanshu, Bode, Dieter, Filipcic, Marko Ersek, Velenis, Dimitrios, Chakrabarti, Maumita, De Heyn, Peter, Verheyen, Peter, Absil, Philippe, Ferraro, Filippo, Ban, Yoojin, Van Campenhout, Joris, Bogaerts, Wim, Deng, Qingzhong
Format: Conference Proceeding
Language:English
Subjects:
Broadband communication
broadband splitter
Couplings
Directional couplers
lossless
Optical losses
Silicon photonics
Online Access:Request full text
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Description
Summary:A broadband 50:50 bent directional coupler, based on low loss bends, is experimentally demonstrated to significantly reduce coupling variation from 0.369 in the traditional directional coupler to just 0.076 over an 80 nm wavelength range, showcasing a substantial 4.85 times less coupling variation.
ISSN:1949-209X
DOI:10.1109/SiPhotonics60897.2024.10543882