Cavity harmonic generation using the intermediate harmonics was reused

摘要

Laser configured to generate the harmonic laser beam energy (352,552,652,782) or more and a secondary (342) within the cavity (300,500,600,700,800,900) is , I provided with a (360,670,910) mode-matching optics. For example, such (this is the harmonic of the more or tertiary higher harmonic laser beam energy generation efficiency by reusing intermediate harmonic laser beam energy (for example, second harmonic laser beam energy) the non-use portion of the and a curved mirror for improving laser beam energy generation efficiency). The curved mirror can be positioned resonant laser cavity (306) out. Is Divergence and beam radius of the secondary harmonic laser beam energy is re-used, and position the radius of curvature of the curved mirror, the second harmonic and the Divergence and beam radius of the second harmonic laser beam incident, and enters is selected to be the same necessarily at any location along the beam path of the laser beam. [Selection Figure Figure 3