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High-average-power (15-W) 255-nm source based on second-harmonic generation of a copper laser master oscillator power amplifier system in cesium lithium borate

机译:基于二次谐波生成的高平均功率(15W)255 nm硼酸铯酸铜主振荡器功率放大器系统

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摘要

We have generated 15 W of UV (255-nm) radiation with an optical conversion efficiency of 28% by frequency doubling the 510.6-nm output of a high-beam-quality, high-power copper laser system in cesium borate lithium (CLBO). We found that the superior performance of CLBO relative to β-barium borate is attributable largely to the small UV absorption and wide temperature acceptance bandwidth of CLBO, which reduces thermal dephasing during high-power UV generation.
机译:通过将硼酸铯锂(CLBO)的高光束质量,高功率铜激光系统的510.6 nm输出翻倍,我们已经产生了15 W的UV(255 nm)辐射,其光学转换效率为28%。 。我们发现CLBO相对于β-硼酸钡的优越性能很大程度上归因于CLBO的紫外线吸收小和宽温度接受带宽,这减少了高功率紫外线产生过程中的热相移。

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