Programmable photonic integrated circuit dynamically adjusts/ slows light's propagation speed/ shape on a chip to manage signal latency

https://www.eurekalert.org/news-releases/1136567

"resonators lock into fixed operational behaviors after manufacturing, requiring new hardware layouts modifying signal paths/ frequency ranges... overcome treating bright/ dark optical states as single, unified variable controlled by 2 integrated loop couplers... implemented successfully on a stable silicon nitride platform... versatile, compact component for AI data servers' variable delay lines, optical buffers, high-efficiency signal synchronizers"