Apparatus for the industrial processing of a material by optical radiation
AssigneeSPI Lasers UK Limited
InventorsMalcolm Varnham, Mikhail Zervas
Life of this patent
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Abstract
Apparatus for the industrial processing of a material by a fibre laser, which fibre laser emits optical radiation, the apparatus configured such that the optical radiation forms an optical power distribution on a surface of the material, including first and second optical powers which are located at respective first and second radii from a centre of the optical power distribution and which are of substantially higher intensity than a third optical power which is located at a third radius from the centre of the optical power distribution and which is smaller than the first and the second radii.
Claims22
Apparatus for the industrial processing of a material comprising a fibre laser, wherein the fibre laser is configured to emit optical radiation, the apparatus configured such that the optical radiation can form an optical power distribution on a surface of the material, the optical power distribution including first and second optical powers which are located at respective first and second radii from a centre of the optical power distribution and which are of substantially higher intensity than a third optical power which is located at a third radius from the centre of the optical power distribution and which is smaller than the first and the second radii.
Method for industrial processing of a material, comprising:
- providing a fibre laser which emits optical radiation;
- and
- causing the fibre laser to emit the optical radiation such that the optical radiation forms an optical power distribution on a surface of the material, the optical power distribution including first and second optical powers which are located at respective first and second radii from a centre of the optical power distribution and which are of substantially higher intensity than a third optical power which is located at a third radius from the centre of the optical power distribution and which is smaller than the first and the second radii.
Method for the industrial processing of a material, comprising:
- providing a cladding-pumped fibre laser which emits optical radiation;
- causing the optical radiation to form an optical power distribution in the shape of a ring on a surface of the material;
- providing a laser nozzle and gas delivery system, and directing gas through the laser nozzle towards the ring on the surface of the material.
Dependencies are inferred from the claim text.