National Institutes for Quantum and
Radiological Science and Technology
发明人:
申请号：
EP18854859.8
公开号：
EP3680998A4
申请日:
2018.08.24
申请国别(地区):
EP
年份:
2021
代理人:
摘要：
Provided is a laser device (1) in which: a laser medium (26) doped with ytterbium emits light upon absorption of excitation light (100); the light emitted by the laser medium (26) is amplified to obtain output light (200); and the output light (200) is outputted in the form of a plurality of pulses. In the laser device (1), a spatial filter (40) is disposed in the optical path of the light emitted by the laser medium (26) or is disposed in the optical path of the output light (200) outputted from an optical resonator (20), the spatial filter (40) being configured to filter out a portion of the light or of the output light (200) around the optical axis.
