在激光器的设计及使用过程中,观察到激光器安装板的结构对激光器输出功率的稳定性能够起到关键作用.在对安装板施加一定螺钉预紧力时,安装板的变形一般会导致激光器输出功率的大小出现不同程度的变化.为了减小安装板变形对激光器输出功率稳定性的影响,设计了3 种安装板结构,采用有限元方法分别模拟了施加一定螺钉预紧力时的变形情况,并实验测量了几种情况下的输出功率.模拟和实验结果均表明,相比未作处理或螺孔侧面开孔的安装板结构,采用开侧槽安装板的激光器的功率受螺钉预紧力的影响较小,是一种更为稳定可靠的激光器安装板结构.

In the process of laser design and use,the observed structure of the laser mounting plate can play a key role in stability of the laser output power.When applying a certain screw preload to the mounting plate,deformation of the mounting plate would generally result in the laser output power with varying degrees of change.In order to reduce the impact of the mounting plate deformation to laser output power stability,three mounting plates with different structures are designed to simulate the deformation of applying a certain screw preload by using the finite element analysis,respectively,and the corresponding output power is measured in several cases through experiments.The results of simulation and experiment show that,compared to the structure of untreated mounting plate and perforated mounting plate,the output power of the laser with side slotted mounting plate structure is relatively stable in the case of applying a certain screw preload.Therefore,the side slotted structure is a more stable and reliable laser mounting plate structure.