100 GW Phased Laser Array Interstellar Launcher Model

Underwrite 1 square kilometer orbital arrays combining 100 million synchronized fiber lasers into a 100 Gigawatt coherent laser beam (accelerating 1-gram gram-scale microchip probes to 0.2c (60,000 km/second) via reflective light sails in 10 minutes). Model interstellar science mission launches ($85M/swarm launch), and 25-yr IRR.