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聚光腔是固体激光器中的核心部件,它在很大程度上决定着激光系统的总效率。聚光腔除了为泵浦光源与工作物质之间提供良好耦合之外,还决定着激光物质上泵浦光密度的分布,从而影响到输出光束的均匀性、发散度和光学畸变。可用于聚光腔的材料有金属材料和陶瓷材料。金属材料加工工艺复杂,反射面精度要求高,在强激光照射下,反射面易产生硫化。陶瓷材料作为新型聚光腔材料,由于其漫反射特性、机械特性和良好的化学结构稳定性,对激光工作物质的辐照光场更均匀,可形成全截
The condenser cavity is the core component of a solid-state laser and largely determines the overall efficiency of the laser system. In addition to providing a good coupling between the pump light source and the working substance, the condenser cavity also determines the distribution of the pump optical density on the laser substance, thereby affecting the uniformity, divergence and optical distortion of the output light beam. Materials that can be used for the condenser cavity are metallic and ceramic materials. Complex metal material processing technology, reflecting the high precision, under strong laser irradiation, the reflection surface prone to curing. As a new material of cavity, ceramic material has a uniform irradiation field due to its diffuse reflection, mechanical properties and chemical structure stability.