| 摘要 |
PURPOSE:To output a laser light corresponding to its application by selectively introducing a diffracted light of at least two orders of diffracted lights by a diffraction grating of a laser light from a laser chamber into the chamber, and resonating it. CONSTITUTION:Means (first and second reflectors 4, 5) for selectively introducing a diffracted light of at least two orders of diffracted lights by a diffracting grating 3 of an output laser light from a laser chamber 1 into the chamber 1 along the optical axis of the laser light and resonating it are provided. Here, when the diffracted light is introduced along the optical axis of the laser light into the chamber 1, the diffracted lights can be resonated, any of the diffracted lights of primary and secondary diffractions can be resonated. Thus, the diffracted light to be resonated in accordance with the laser application can be suitable altered, and various utilities can be applied by one laser apparatus. |
