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Mode conversion trimming in asymmetric directional couplers enabled by silicon ion implantation

An on-chip asymmetric directional coupler (DC) can convert fundamental modes to higher-order modes and is one of the core components of mode-division multiplexing (MDM) technology. In this study, we propose that waveguides of the asymmetric DC can be trimmed by silicon ion implantation to tune the e...

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Hauptverfasser: Xu, Rongyang (VerfasserIn) , Taheriniya, Shabnam (VerfasserIn) , Varri, Akhil (VerfasserIn) , Ulanov, Mark (VerfasserIn) , Konyshev, Iurii (VerfasserIn) , Krämer, Linus (VerfasserIn) , McRae, Liam (VerfasserIn) , Ebert, Falk (VerfasserIn) , Bankwitz, Julian Rasmus (VerfasserIn) , Ma, Xinyu (VerfasserIn) , Ferrari, Simone (VerfasserIn) , Bhaskaran, Harish (VerfasserIn) , Pernice, Wolfram (VerfasserIn)
Dokumenttyp: Article (Journal) Editorial
Sprache:Englisch
Veröffentlicht: 4 September 2024
In: Nano letters
Year: 2024, Jahrgang: 24, Heft: 35, Pages: 10813-10819
ISSN:1530-6992
DOI:10.1021/acs.nanolett.4c02065
Online-Zugang:Verlag, kostenfrei, Volltext: https://doi.org/10.1021/acs.nanolett.4c02065
Volltext
Verfasserangaben:Rongyang Xu, Shabnam Taheriniya, Akhil Varri, Mark Ulanov, Iurii Konyshev, Linus Krämer, Liam McRae, Falk Leonard Ebert, Julian Rasmus Bankwitz, Xinyu Ma, Simone Ferrari, Harish Bhaskaran, and Wolfram H.P. Pernice
Beschreibung
Zusammenfassung:An on-chip asymmetric directional coupler (DC) can convert fundamental modes to higher-order modes and is one of the core components of mode-division multiplexing (MDM) technology. In this study, we propose that waveguides of the asymmetric DC can be trimmed by silicon ion implantation to tune the effective refractive index and facilitate mode conversion into higher-order modes. Through this method of tuning, transmission changes of up to 18 dB have been realized with one ion implantation step. In addition, adjusting the position of the ion implantation on the waveguide can provide a further degree of control over the transmission into the resulting mode. The results of this work present a promising new route for the development of high-efficiency, low-loss mode converters for integrated photonic platforms, and aim to facilitate the application of MDM technology in emerging photonic neuromorphic computing.
Beschreibung:Online veröffentlicht: 20. August 2024
Gesehen am 23.07.2025
Beschreibung:Online Resource
ISSN:1530-6992
DOI:10.1021/acs.nanolett.4c02065

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