Silicon photonics startup Lightmatter has unveiled groundbreaking optical connectivity solutions for AI chips, introducing an interposer and chiplet designed to accelerate data transfer between processors. The USD 4.4 billion-valued company's interposer, manufactured by GlobalFoundries, is scheduled for 2025 release, while the chiplet will launch in 2026. With USD 850 million in venture funding, Lightmatter's technology leverages optical connections instead of traditional electrical signals, positioning itself at the forefront of Silicon Valley's push toward more efficient AI chip interconnection solutions.