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US 10,852,471 B2Granted
Laser systems utilizing cellular-core optical fibers for beam shaping
AssigneeTeradiode, Inc.
InventorsFrancisco Villarreal-Saucedo, Wang-Long Zhou, Parviz Tayebati
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Abstract
In various embodiments, the beam parameter product and/or beam shape of a laser beam is adjusted by directing the laser beam across a path along the input end of a cellular-core optical fiber. The beam emitted at the output end of the cellular-core optical fiber may be utilized to process a workpiece.
Claims28
A laser system comprising:
- a beam emitter for emission of an input laser beam;
- a cellular-core optical fiber having an input end and an output end opposite the input end, the cellular-core optical fiber comprising (i) a plurality of core regions, (ii) an inter-core cladding region surrounding and extending between the core regions, and (iii) an outer cladding surrounding the inter-core cladding region, wherein a refractive index of each of the core regions is larger than a refractive index of the inter-core cladding region;
- a reflector for receiving the input laser beam and reflecting the input laser beam toward the cellular-core optical fiber;
- an optical element for receiving the input laser beam from the reflector and focusing the input laser beam toward the input end of the cellular-core optical fiber;
- and
- a controller for controlling relative motion between the input end of the cellular-core optical fiber and at least one of the reflector or the optical element to thereby direct the input laser beam along a path across the input end of the cellular-core optical fiber, the path comprising one or more of the core regions, whereby at least one of a beam shape or a beam parameter product of an output beam emitted at the output end of the cellular-core optical fiber is determined at least in part by the path of the input laser beam.
3 more elements
Dependencies are inferred from the claim text.