Goldman Sachs says the AI optical networking market growing nearly 10x to $150B+ by 2028 as clusters scale into multi-rack systems like $NVIDIA(NVDA)$ Rubin Ultra NVL576. The AI bottleneck is shifting to the fabric that lets hundreds of GPUs behave like one system driving a massive dollar content expansion across NVLink, co-packaged optics & optical interconnects: • $Aehr Test(AEHR)$ burn-in & reliability test systems for photonics and AI hardware • $Applied Optoelectronics(AAOI)$ data center optical transceivers with in-house laser manufacturing • $Lume