1991 年 19 巻 2 号 p. 185-191
An unidirectional output power of over 260 mW has been obtained at 790 nm from a Ti:Al2O3 ring laser pumped by all lines 5.6 W of an Ar+ laser. Astigmatism generated in the cavity by a 3-cm long laser crystal cut at Brewster angle was compensated. The cavity modes of the ring resonator were analyzed to obtain the optimum geometry of the Ti:Al2O3 ring laser cavity.