Conceptual design of 1MJ KrF laser system

摘要

Strongly saturated high gain operation is proposed for amplifiers of KrF laser ICF (Inertial Confinement Fusion) driver. This operation mode gives high output power density, high energy extraction efficiency and high stage gain at the same time. Conceptual design of 1MJ KrF laser driver based on the high gain amplifier is also presented. The design is based on 65kJ/260ns amplifier unit and 8ns x 32 pulse multiplexing, and only 3 stages are required to reach 1MJ output energy.