Nonlinear mirror (NLM) mode locking has also been verified to be an efficient technology for high-power ultrashort pulse laser generation. In this paper, we report on high-power and high-efficiency NLM mode-locked Nd:YVO₄ laser with a 880-nm diode laser for in-band pumping, which has very rarely been investigated in the past. The achieved maximum average output power reached 6.76 W at an absorbed power of 13.82 W corresponding to a slope efficiency of 54.5%. Thanks to the used type I LBO crystal with small group velocity mismatch, the achieved pulse duration was as short as 6.5 ps. The results represent one of the best performances that ever achieved for NLM mode-locked Nd:YVO₄ laser. NLM mode locking could be very promising for high-power ultrashort pulse generation in visible and middle infrared wavelengths, at which SESAMs are still not mature and the average output powers of ultrafast laser oscillators are also still limited to great extent.

非线性反射镜（NLM）锁模技术也已被证明是一种用于产生大功率超短脉冲激光的有效技术。在本文中，我们报道了用于带内泵浦的大功率，高效率NLM锁模Nd：YVO ₄激光器和880 nm二极管激光器，在过去很少进行研究。在13.82 W的吸收功率下，获得的最大平均输出功率达到6.76 W，对应于54.5％的斜率效率。由于使用的I型LBO型晶体具有较小的群速度失配，因此获得的脉冲持续时间短至6.5 ps。该结果代表了NLM锁模Nd：YVO _4所获得的最佳性能之一。激光。对于可见光和中红外波长的大功率超短脉冲生成，NLM模式锁定可能非常有前途，在该波长下SESAM仍不成熟，而且超快激光振荡器的平均输出功率也仍然受到很大程度的限制。