Ayar Labs, which aims to replace the copper wiring in semiconductors with fiber optics, raised a $500M Series E led by Neuberger Berman at a $3.8B valuation Wall Street Journal 2026-03-03 Robbie Whelan Ayar Labs, Neuberger Berman Related Coverage Ayar Labs Raises $500M in Series E Funding FinSMEs Ayar Labs Closes $500M Series E, Accelerates Volume Production of Co-Packaged Optics Business Wire · Kristine Raabe NVIDIA, AMD back Ayar Labs' $500M raise for optical tech crushing AI copper bottlenecks Tech Funding News · Vignesh R Nvidia-backed Ayar Labs raises $500 million at $3.75 billion valuation Reuters Ayar Labs Raises $500M To Scale AI Optical Interconnects Ventureburn Ayar Labs Raises $500 Million Series E at $3.75 Billion Valuation to Scale Optical Interconnects for AI Infrastructure Unite.AI · Antoine Tardif Ayar Labs Closes $500M Series E, Accelerates Volume Production of Co-Packaged Optics Ayar Labs Ayar Labs: $500 Million Series E Raised At $3.75 Billion Valuation For Optics Solutions For AI Scale-Up Pulse 2.0 · Amit Chowdhry