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Microscopic "Ski-Jumps" Could Shrink Spacecraft LiDAR to the Size of a Microchip

Every ounce counts when launching a rocket, which is why considerations for the Size, Weight, and Power (SWaP) of every component matters so much. For decades, one of the heaviest and most power-hungry components on a spacecraft has been its optical and communications hardware - specifically the bulky mechanical mirror used for LiDAR and free-space laser communications. But a new paper, published in Nature by researchers at MIT, MITRE, and Sandia National Laboratories, might have just fundamentally changed the SWaP considerations of LiDAR systems. Their technology, which they’re called a “photonic ski-jump” could one day revolutionize how spacecraft communicate.

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