This analysis demonstrates improved reception for multiple modes using a metalens and spatial coupler, indicating advanced light reception technology.
We demonstrate an integrated free-space light receiver with a focusing metalens and an inverse-designed four-channel spatial coupler, significantly enhancing the reception performance for HG 00 , HG 01 , HG 10 , HG 02 modes compared to the non-metalens coupling.
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Jiao et al. (2025) studied this question.
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