为了将虚共焦非稳腔输出光束质量高和角锥棱镜谐振腔具有免调试的优点结合到一起，提出了用球面角锥棱镜构成虚共焦非稳腔的方案。利用已有虚共焦非稳腔钕玻璃激光器，设计加工了一球面角锥棱镜非稳腔钕玻璃激光器。模拟计算了两谐振腔输出光束的模式分布，然后对两钕玻璃激光器进行了实验对比研究。结果表明:实验得到的模式分布与模拟计算结果相吻合，球面角锥棱镜非稳腔钕玻璃激光器与虚共焦非稳腔钕玻璃激光器分别获得了最大2 176.9 J和2 340.6 J的能量输出，二者的电光效率与束散基本相同，分别为4.3%,0.30 mrad和4.6%,0.26 mrad。

Virtual confocal unstable resonator has high beam quality, and corner cube resonator has the advantage of free-of-adjustment. To obtain resonators with these advantages, the scheme of virtual confocal unstable resonator with sphere corner cube prism as the end-mirror was demonstrated. A sphere corner cube prism(SCCP) unstable resonator Nd:glass laser was got by replacing the end-mirror of the virtual confocal unstable resonator Nd:glass laser with a sphere corner cube prism. The output mode distributions of the two lasers are simulated. The performance of the two lasers was compared through experiments. The results show that the mode distributions agree with the simulation. The maximal output energy is 2 176.9 J and 2 340.6 J for the SCCP resonator laser and virtual confocal unstable resonator laser, respectively. The electro-optic efficiency and the beam divergence angles of the two lasers are approximately the same. They are 4.3%, 0.30 mrad and 4.6%, 0.26 mrad, respectively.