(3+1)D printed adiabatic 1-to-M broadband couplers and fractal splitter networks

Grabulosa, Adrià and Porte, Xavier and Jung, Erik and Moughames, Johnny and Kadic, Muamer and Brunner, Daniel (2023) (3+1)D printed adiabatic 1-to-M broadband couplers and fractal splitter networks. Optics Express, 31 (12). pp. 20256-20264. ISSN 1094-4087 (https://doi.org/10.1364/OE.486235)

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Abstract

We experimentally demonstrate, based on a generic concept for creating 1-to-M couplers, single-mode 3D optical splitters leveraging adiabatic power transfer towards up to 4 output ports. We use the CMOS compatible additive (3+1)D flash-two-photon polymerization (TPP) printing for fast and scalable fabrication. Optical coupling losses of our splitters are reduced below our measurement sensitivity of 0.06 dB by tailoring the coupling and waveguides geometry, and we demonstrate almost octave-spanning broadband functionality from 520 nm to 980 nm during which losses remain below 2 dB. Finally, based on a fractal, hence self-similar topology of cascaded splitters, we show the efficient scalability of optical interconnects up to 16 single-mode outputs with optical coupling losses of only 1 dB.

  • Item type:Article
    ID code:87089
    Dates:
    Date
    Event
    1 June 2023
    Published
    25 April 2023
    Accepted
    Notes:“© 2023 Optica Publishing Group under the terms of the Open Access Publishing Agreement. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for noncommercial purposes and appropriate attribution is maintained. All other rights are reserved.”
    Subjects:Science > Physics > Optics. Light
    Department:Faculty of Science > Physics > Institute of Photonics
    Depositing user: Pure Administrator
    Date deposited:27 Oct 2023 11:41
    Last modified:25 Apr 2024 01:36
    URI:https://strathprints.strath.ac.uk/id/eprint/87089
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