Integrating low- loss/ attenuation silica optical fiber onto high-density silicon photonic microchips for optical computing/ communications

https://www.eurekalert.org/news-releases/1140945

"adapting optical fiber manufacturing's flame hydrolysis deposition to deposit high-purity germano-silicate thin films onto oxidized silicon wafers... approximately 50 mol% germanium oxide concentration for strong refractive-index contrast enabling tight light confinement on planar microchip... resulting germano-silicate microresonators exhibit ultrahigh quality factors... overcomes optical scattering losses... Photonic chips for AI, quantum information systems, precision sensing, and optical communication"