Ayar Labs, based in Emeryville, California, has successfully raised $155 million in a Series D funding round, achieving a valuation exceeding $1 billion. The funding was led by Advent International and Light Street Capital, with significant investments from notable technology firms including Nvidia, Intel, and AMD. The company focuses on developing optical interconnects aimed at alleviating bottlenecks in AI infrastructure. CEO Mark Wade highlighted the startup's collaborations with these tech giants to enhance AI capabilities. This funding round marks a significant milestone for Ayar Labs as it continues to innovate in the optical communication sector.