Laser apparatus
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorsYoshitaka Iwashita, Akihiro Otani
Life of this patent
Estimating the term…
Abstract
A laser apparatus which has a laser resonator 2 for emitting a laser beam 8, an optical fiber 23, on which the laser beam 8 transmitted from the laser resonator 2 through a beam transmission optical path is made incident, for transmitting the laser beam 8 to a workpiece, a measurement and adjustment jig 44 for measuring laser beam output of an annular pattern occurring in the periphery of a beam pattern of the laser beam 8 emitted from the optical fiber 23, and a fiber incidence section 22 for adjusting incidence of the laser beam 8 on the optical fiber 23 based on output from the measurement and adjustment jig 44.
Claims5
A laser apparatus comprising:
- a laser resonator for emitting a laser beam,
- an optical fiber, on which the laser beam transmitted from said laser resonator through a beam transmission optical path is made incident, for transmitting the laser beam to a workpiece,
- laser beam output measurement means for measuring laser beam output in an annular pattern at a periphery of a beam pattern of the laser beam emitted from said optical fiber, and
- fiber incidence adjustment means for adjusting incidence of the laser beam on said optical fiber based on an output from said laser beam output measurement means,
- wherein said laser beam output measurement means comprises:
- a first aperture member having a first opening for allowing the annular pattern at the periphery of the beam pattern of the laser beam to pass through,
- a second aperture member having a second opening for allowing a circular pattern at a center of the beam pattern to pass through, and
- a power meter for measuring laser beam output of the laser beam passing through the first or second opening.
A laser apparatus comprising:
- a laser resonator for emitting a laser beam,
- an optical fiber, on which the laser beam transmitted from said laser resonator through a beam transmission optical path is made incident, for transmitting the laser beam to a workpiece,
- laser beam output measurement means for measuring laser beam output in an annular pattern at a periphery of a beam pattern of the laser beam emitted from said optical fiber, and
- fiber incidence adjustment means for adjusting incidence of the laser beam on said optical fiber based on an output from said laser beam output measurement means,
- wherein said laser beam output measurement means comprises:
- a first aperture member having a first opening for allowing the annular pattern at the periphery of the beam pattern of the laser beam to pass through;
- and
- a second opening for allowing a circular pattern at a center of the beam pattern to pass through, the first and second openings being exclusively switched for use, and
- a power meter for measuring laser beam output of the laser beam passing through the first or second opening.
Dependencies are inferred from the claim text.