| 摘要 |
A laser having a standing wave resonator including a first resonator section, which has at least a first end mirror and a second resonator section, which has at least a second end mirror. At least one of the optical elements of the first resonator section is embodied in focusing fashion. Accordingly, the beam axes of the laser beam which arrives upon respective tiltings of at least one of the optical elements in the second resonator section have at least one crossing point, which lies in the pump region of the laser medium or is at a distance from the pump region which amounts to less than the Rayleigh length. The radius (w) of the laser beam is less than five times the radius (w) of the laser beam in the pump region of the laser medium. |
