| 摘要 |
<p>The apparatus steers an input laser beam into first and second output laser beams. The apparatus has a beam splitter element to spatially split the beam into first and second sub-beams. A beam superimposing element superimposes the sub-beams and guides them into the first and/or second output beams. The intensity of the output beams depends on a relative phase shift between the sub-beams. An optical control member in the first sub-beam is arranged such that the optical wavelength of the first sub-beam between the beam splitter and the superimposing element is variable. Independent claims also cover a laser treatment apparatus.</p> |
