FOURTH HARMONIC GENERATING SOLID LASER DEVICE

摘要

A fourth harmonic generating solid laser device includes a second harmonic generating cavity (11), a fourth harmonic generating cavity (12), the two cavities are designed independently, each of the optic devices in the fourth harmonic generating cavity (12) is connected with a motors (15,16) respectively, the motor (15,16) is connected with a computer. When one of a film of the surface of the optic devices is deteriorated, the optic device is displaced to another place by the motor. Therefore, the laser has long life.