Inertial fusion energy (IFE) is moving from scientific breakthrough to commercial reality. After the National Ignition Facility achieved net target gain in December 2022, the focus has shifted to engineering the necessary hardware—materials, targets, and, most importantly, semiconductor laser diodes. Widely regarded as the critical component that can make IFE commercially viable, laser diodes must become compact, efficient, reliable, and affordable enough to support future power plants consisting of many thousands of laser diode modules.
Cost remains the largest barrier to economical diode use for fusion, making manufacturing excellence and a skilled workforce essential to the emerging IFE supply chain.
The article examines high-brightness diode architectures, Leonardo's T6 heatsink, precision micro-optics, double-junction architecture, efficiency, reliability, and the purpose-built manufacturing ecosystem needed to reach lower costs. It also explores how Leonardo Electronics US Inc., the University of Arizona, and regional workforce-development partners position Southern Arizona to manufacture low-cost, fusion-grade laser diodes at scale.Read the full article at Laser Focus World.