Development status and future prospects of high-repetition-rate large-scale power lasers

Abstract

The development of high-energy, high-repetition-rate lasers is essential for next-generation applications such as inertial fusion energy and high-intensity laser science. However, efficiently managing the heat generated by the gain medium remains a major challenge. We have adopted the cryogenic, conduction-cooled active mirror architecture and developed unique core technologies to address this issue. Using a prototype system, we successfully produced 10 J pulses at 100 Hz, achieving a world-leading performance level. A larger-aperture laser system is currently under construction. This article presents the current status of this development project and discusses its future prospects.