We report on a high-power continuous-wave (CW) intracavity frequency-doubled laser at 670.8 nm, which is produced by the second-harmonic generation of a diode side-pumped Nd:YAP crystal laser with a type-II noncritically phase-matched LBO crystal. A maximum output power up to 13 W at 670.8 nm is obtained with an optical-to-optical \((808\mathrm{ nm}\to 671\mathrm{ nm})\) efficiency of 2.4%. The beam quality factor M² is measured to be 8.85, and the fluctuation (RMS) of output power is < ± 0.6% over 30 min. To the best of our knowledge, this is the highest power for the CW laser at 670.8 nm.

中文翻译：

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波长为670.8 nm的13 W连续波腔内倍频Nd：YAP / LBO激光器

我们报告了670.8 nm的高功率连续波（CW）腔内倍频激光器，该激光器是通过二次谐波产生的二极管侧泵浦Nd：YAP晶体激光器与II型非临界相-相产生的。匹配的LBO晶体。以2.4％的光对光（（808 \ mathrm {nm} \至671 \ mathrm {nm}）\）效率获得了在670.8 nm处高达13 W的最大输出功率。测得的光束质量因数M ²为8.85，在30分钟内输出功率的波动（RMS）<±0.6％。据我们所知，这是连续波激光器在670.8 nm处的最高功率。