We report high-power second-harmonic generation of 760 nm laser light from optically-pumped vertical-external-cavity surface-emitting laser based on quantum dot active medium. The laser generates ~1.2 W in fundamental transverse mode with fixed linear polarization. The emission wavelength can be continuously tuned from 738 to 778 nm by using an intra cavity birefringent filter for fundamental radiation without readjustment of phase-matching angle of the nonlinear crystal. The result constitutes a viable alternative for applications requiring broadly tunable high brightness lasers in the 700-800 nm range.

中文翻译：

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基于量子点增益镜的高功率 760 nm VECSEL

我们报告了基于量子点活性介质的光泵浦垂直外腔表面发射激光器产生 760 nm 激光的高功率二次谐波。激光器在具有固定线性偏振的基本横模中产生 ~1.2 W。通过使用腔内双折射滤波器进行基波辐射，发射波长可以从 738 nm 连续调谐到 778 nm，而无需重新调整非线性晶体的相位匹配角。结果构成了需要在 700-800 nm 范围内广泛可调的高亮度激光器的应用的可行替代方案。