The HiPER+RF project addresses key challenges in inertial confinement fusion (ICF) facility design by: (i) increasing laser wall-plug efficiency to 7–15%,(ii) demonstrating high-repetition-rate operation with ≥1 shot/min and potential multi-Hz capability,(iii) mitigating laser–plasma instabilities through broadband pulses, longer wavelengths (e.g. the 2nd harmonic of Nd lasers), and advanced beam smoothing.This work package develops the high-efficiency, high-repetition-rate laser drivers essential for a fusion power plant.
Task 3.1: Develop a roadmap for Diode-Pumped Solid-State Laser (DPSSL) technology, including risk and cost analysis and scaling.
Task 3.2: Conceptual development of prototype laser subsystems, primarly amplifier modules and adaptive optics, in close collaboration with industry.
Task 3.3: Propose laser architectures for both single-shot and multi-Hz operation, evaluating different technologies and cooling methods.
Task 3.4: Define and model laser front-end stability and control, amplification noise, and thermal effects to ensure system resilience.
Task 3.5: Design scalable power conditioning and heat extraction systems.
Task 3.6: Partner with European photonics SMEs and research labs to co-design key components, fostering a European supply chain for fusion-class DPSSLs.