Recent experiments show that pulsed HF lasers are capable of producing high energy with good efficiency. Preliminary experiments show that the laser radiation from the high-gain medium can be controlled with a low-power probe laser beam or with low-level feedback. These results indicate that the HF laser may have potential for second-generation laser fusion experiments.
Edward L. Patterson,
Robert A. Gerber,
"High Energy Hf Pulsed Lasers", Proc. SPIE 0076, Ultra High Power Lasers for Practicable Applications, (21 July 1976); doi: 10.1117/12.954758; https://doi.org/10.1117/12.954758