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arXiv · 2208.09767

(3+1)D-printed adiabatic 1-to-N broadband couplers

Adrià Grabulosa·Xavier Porte·Erik Jung·Johnny Moughames·Muamer Kadic·Daniel Brunner
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Abstract

We report single-mode 3D optical couplers leveraging adiabatic power transfer towards up to 4 output ports. We use the CMOS compatible additive (3+1)D \emph{flash}-TPP printing for fast and scalable fabrication. Coupling optical losses of such devices are reduced below $\sim$~0.06~dB by tailoring the coupling and waveguides geometry, and we demonstrate almost octave-spanning broadband functionality from 520~nm to 980~nm.

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Adrià Grabulosa, Xavier Porte, Erik Jung, Johnny Moughames, Muamer Kadic, Daniel Brunner. 2022-08-21. (3+1)D-printed adiabatic 1-to-N broadband couplers. https://arxiv.org/abs/2208.09767

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