Core Insights - Caltech scientists have developed a new method to guide light on silicon wafers, achieving low signal loss in the visible light spectrum comparable to fiber optics, paving the way for next-generation photonic integrated circuits (PICs) with significant implications for precision measurement, AI data center communications, and quantum computing [1][2] Group 1 - The breakthrough involves using lithography to create nanoscale waveguides from germano-silicate, arranged in a helical geometry to extend light propagation paths and effectively transfer light between fiber optics and semiconductor lasers [1] - The new components made with this platform perform at the level of top silicon nitride devices in the near-infrared spectrum, and significantly outperform silicon nitride in the visible light spectrum [2] - The technology expands the usable wavelength range, enabling critical atomic operations and making chip-level atomic sensors, optical clocks, and ion trapping systems possible [2]