Fig. 2 | Nature Communications

Fig. 2

From: Arbitrarily routed mode-division multiplexed photonic circuits for dense integration

Fig. 2The alternative text for this image may have been generated using AI.

Fabrication and experimental results of the digital meta-structure (DMS)-based bending. a The top-view microscope image of the mode-division multiplexing (MDM) circuit consisting of multiplexer (MUX), bending, and demultiplexer (DEMUX). b The microscope image of the reference circuit: back to back (DE)MUXs. c The scanning electron microscope image of the fabricated bending. d‒f The measured transmission spectra of the MDM circuit for the optical wave launched from I1 (TE0 mode), I2 (TE1 mode), and l3 (TE2 mode), respectively

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