Key Takeaways Fiber lasers (1.06 μm) excel in aerospace, defense, and medical sectors due to superior beam quality, efficiency (30–40%), compact design, and strong metal absorption, making them ideal for precision welding, micro-drilling, and high-energy defense systems. CO₂ lasers (10.6 μm) remain unmatched for non-metals and biological tissues, excelling in composites, ceramics, polymers, and soft-tissue […]