He—Ne气体放电激光器是一种增益比较低的激光器,因此,必须把一切光能损耗减到最小限度,以提高激光输出,但是,激光器谐振腔的反射镜却导致了很大的光损耗,其中包括反射镜的透射损耗、散射和吸收损耗,减小这些损耗的意义在于:反射率增加0.1％输出率就增加10％。所以,制备高质量的介质高反射镜对于He—Ne激光器的质量和寿命都有直接意义。 He-Ne gas discharge lasers are relatively low-gain lasers and therefore all optical energy losses must be minimized to increase laser output, however, the laser resonator mirrors cause a significant loss of light, These include the transmission loss, scattering and absorption losses of the mirrors. The significance of reducing these losses is that increasing the reflectivity by 0.1% increases the output by 10%. Therefore, the preparation of high-quality medium reflector for the He-Ne laser quality and life have a direct meaning.