Chan C H
Appl Opt. 1975 Oct 1;14(10):2418-26. doi: 10.1364/AO.14.002418.
A rimmed optical resonator is studied both theoretically and experimentally. It consists of a convex mirror that spreads out the mode volume and an annular concave mirror that controls the diffraction loss. It is found that such a system is definitely superior to a conventional stable resonator for Fresnel numbers larger than unity. It utilizes larger mode volume, yields higher power, and discriminates more against higher order modes. However, our system fails to a certain extent when it is operated at high power. Methods to remove this difficulty are discussed.
对一种带边缘的光学谐振器进行了理论和实验研究。它由一个扩展模式体积的凸面镜和一个控制衍射损耗的环形凹面镜组成。发现对于菲涅尔数大于1的情况，这样的系统肯定优于传统的稳定谐振器。它利用了更大的模式体积，产生更高的功率，并且对高阶模式的抑制更强。然而，我们的系统在高功率运行时会在一定程度上失效。讨论了消除这一困难的方法。
