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开展了高功率双掺杂浓度板条激光技术的理论与实验研究,通过分段掺杂有效降低了板条长度方向上的吸收抽运功率密度的不均匀性,显著提高了单个激光板条的平均储能密度,总储能提高了39%。当二极管总抽运功率为15kW时,3kW的种子光源通过双掺杂板条可提取5.16kW的功率,这个数值相比单掺杂板条增加了36%,且光光转换效率为34.4%,与理论预期基本相符。
The theoretical and experimental research on high power double doping concentration lath laser technology is carried out. The segmented doping effectively reduces the nonuniformity of absorption pumping power density in the length direction of the lath and significantly increases the single laser lath The average energy storage density, total energy storage increased by 39%. When the total diode pumping power is 15kW, the 3kW seed light source can extract 5.16kW power through the double-doped slab, which is 36% more than the single-doped slab and the light-to-light conversion efficiency is 34.4% In line with the theoretical expectation.