solar-pumped laser

Simplified scheme of a side-pumped solar laser system with four off-axis parabolic mirrors: (left) front view and (right) side view; (inset) laser head is mounted at the common center point of the four off-axis parabolic mirrors. Credit: Boutaka, Liang, and Abdelhamid Kellou, doi 10.1117/1.JPE.12.038002.
Space-based solar power generation just got a lot closer with new four-mirror pumping solar-powered lasers