Blue intracavity frequency-doubled neodymium - crystal lasers

摘要

The laser has a resonator arrangement with separate optimising of the resonator mode in the laser crystal and in the nonlinear frequency doubler crystal using a dichroitic folding and dividing mirror and adjustment of the mirror distance and curvature. An additional resonator mirror can be used which encloses the nonlinear crystal. The mirror distances and curvatures and the additional mirror are adjusted to achieve resonant frequency doubling.