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US 12,586,988 B2Granted
Laser coupling device
AssigneeShenzhen Atomstack Technologies Co., Ltd
InventorsYun He, Huigang Lin, Zebin Li
Life of this patent
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Abstract
The present disclosure relates to a laser coupling device, which includes a plurality of laser units, configured to emit laser beams; and at least one first convex lens, arranged on optical paths of the laser beams and configured to converge the laser beam. The laser coupling device can emit laser beam with a high power.
Claims18
A laser coupling device, comprising:
- a
- plurality of laser units, configured to emit laser beams;
- and
- at least one first convex lens, arranged on optical paths of the laser beams and configured to converge the laser beam;
- wherein the plurality of laser units comprise:
- a first laser unit, configured to emit a first laser beam in a first polarization state;
- and a second laser unit, configured to emit a second laser beam in the first polarization state;
- wherein the laser coupling device further comprises:
- a half wave plate, arranged on an optical path of the second laser beam and configured to change the first polarization state of the second laser beam to obtain a third laser beam in a second polarization state;
- a polarization beam combiner, arranged on optical paths of the first laser beam and the third laser beam, and configured to combine the first laser beam in the first polarization state and the third laser beam in the second polarization state into a fourth laser beam;
- a beam expander, arranged on an optical path of the fourth laser beam and configured to shape the fourth laser beam;
- and
- the first convex lens, configured to converge the fourth laser beam, which has been shaped by the beam expander, to reach a work piece;
- wherein, the first polarization state and the second polarization state are two orthogonal polarization states.
11 more elements
Dependencies are inferred from the claim text.