SMRTR Science & EngineeringFeb 22, 2025Interesting Engineering

GPS 100 times more accurate: Optical atomic clock could bring centimeter precision

SMRTR summary

A new microcomb chip technology could enable GPS satellites to use optical atomic clocks, potentially increasing location accuracy from meters to centimeters. Researchers from Purdue and Chalmers universities developed paired microcombs that can translate ultra-fast optical signals into usable radio frequencies, paving the way for miniaturized, highly precise timekeeping devices in satellites and everyday GPS systems.

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