By use of a intfacavity Loytfilter foamed with a Brewster plate and a birefringent KTP crystal, we obtained 3. 5 mWstable, single- longitudinal- mode green output at 5 0 0 m W LDA pum ping power.

• 以此进行选模，获得了3.；5mW连续、稳定的单模绿光输出。