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为了在大功率激光二极管抽运固体激光器(DPL)中实现高光束质量和光束的可控制性,提出了激光二极管端侧面组合抽运DPL方案,建立了端侧面组合抽运模型,分析了端面抽运光对振荡光的控制作用,并进行了实验验证。由数值计算和实验结果看出,相对于侧面抽运,端侧面组合抽运DPL中端面抽运光的运用,使零阶模的竞争能力明显提高,光束质量得到了很大改善。总抽运功率一定时,端面抽运功率越大,零阶模的竞争能力越强,输出光束质量越好。因此通过改变端面抽运功率的比例,提高光束质量,并实现对振荡光的控制。
In order to achieve high beam quality and beam controllability in high-power laser diode-pumped solid-state lasers (DPLs), a laser diode side-by-side combination pump (DPL) scheme is proposed and an end-side combination pumping model is established. Optical control of the oscillation light and experimental verification. From the numerical results and experimental results, it can be seen that, compared with the side-pumping and side-pumping DPL, the use of end-pumped light significantly improves the competitiveness of the zero-order mode and greatly improves the beam quality. When the total pumping power is constant, the larger the pumping power of the end face, the stronger the competitive ability of the zero order mode is and the better the output beam quality is. Therefore, by changing the ratio of end pumping power, improve the beam quality, and to achieve the control of the oscillation light.