Scientists build four-lane highway for light inside a single photonic chip
SMRTR summary
Chinese researchers have built a photonic chip that uses almost its entire surface to carry light, not just the edges. By engineering a honeycomb lattice of magnetic rods, they created four parallel signal channels where each lane also acts as a barrier for neighboring lanes. The design achieved 100% spatial utilization efficiency, though it currently works at microwave frequencies and must be adapted for optical use.
SMRTR provides this summary for quick context. The original article belongs to Interesting Engineering.
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