EX-Fusion

EX-Fusion is an Osaka-University spin-out using diode-pumped solid-state lasers in a counter-illumination geometry — the only meaningful private laser ICF program in Asia. Japan's leading optics industrial base is the strategic enabler.

Japan's optics industry can manufacture DPSSLs at scale — that's the bottleneck that's kept laser fusion in the lab.

Global electricity demand is entering an unprecedented growth phase driven by AI infrastructure, data centers, transport electrification, industrial decarbonization, water desalination, and advanced manufacturing. Solar suffers intermittency, wind capacity-factor variability, natural gas carbon emissions, conventional nuclear cost and deployment speed, and batteries energy-density and duration limits. The world requires a new source of clean, dispatchable baseload energy. Fusion represents the ultimate energy source — the challenge is making it commercially practical.

Two opposing laser beams illuminate a D-T target from opposite directions, simplifying target injection and chamber geometry relative to multi-beam architectures.

Deuterium-tritium fusion releases ~80% of its energy as 14.1 MeV neutrons, which deposit their kinetic energy in a surrounding blanket. The heat drives a conventional steam (Rankine) or supercritical-CO₂ (Brayton) turbine.

The most thoroughly understood fusion fuel cycle, highest cross-section at achievable temperatures, and proven back-end engineering (steam turbines are 19th-century technology). Trade-offs: neutron-induced materials damage, tritium handling, ~33–40% Carnot-limited efficiency.

Japan's industrial DPSSL supply chain is the missing piece of commercial laser fusion. EX-Fusion is positioned to capture the value if it materialises.

Asia's commercial laser fusion company.

Build a counter-illumination DPSSL fusion driver.

• 10 Hz laser repetition at kJ class
• Target injector precision