New paper published by the Münster group

In their new paper, the Münster group presents a flexible strategy for the realization of highly efficient grating couplers on low-index photonic platforms and demonstrates new SiN grating couplers (GC), which can be used to effectively couple light to the chip. By depositing an Aluminium mirror from the backside the coupling efficiency was increased, leading to -0.55 dB per coupler.

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