A HIGH EFFICIENCY FREQUENCY-DOUBLING SYSTEM FOR LF-11 LASER FACILITY

We present the design principle and structure of a high efficiency frquency-comerting system used on LF-11 laser facility. We measured the conversion rates, the allowable mismatching angle for the KDP crystal, the far-field divergence angle, near-field intensity distributions, and time profiles of the ω₀ and 2ω₀ laser beams. Finally we introduce an ICF experiment with the 2ω₀ laser beam conducted for the first time in China.