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US 12,327,974 B2Granted
Single emitter stacking for wavelength-beam-combining laser systems
AssigneeWBC Photonics, Inc.
InventorsWang-Long Zhou, Michael Deutsch, Francisco Villarreal-Saucedo, Bien Chann
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Abstract
In various embodiments, multiple laser emitters are arranged in one or more linear stacks and emit beams to one or more linear stacks of interleaving mirrors. The interleaving mirrors direct the beams to a shared exit point, thereby forming an output beam stack. The optical distances traversed by each beam from its emitter to the shared exit point are all equal to each other.
Claims19
A laser apparatus in a three-dimensional space having x, y, and z mutually perpendicular axes defining x-y, x-z, and y-z planes, the laser apparatus comprising:
- a plurality of beam emitters arranged in one or more first linear stacks, wherein in each first linear stack the beam emitters are separated from each other (i) along the x axis by a distance Δx, (ii) along the y axis by a distance Δy, and (iii) along the z axis by a distance Δz;
- and
- a plurality of interleaving mirrors arranged in one or more second linear stacks, wherein (i) a number of the one or more second linear stacks is equal to a number of the one or more first linear stacks, and (ii) each interleaving mirror is positioned to receive a beam emitted by a different one of the beam emitters and direct the beam to a shared exit point, whereby a beam stack is output at the shared exit point,
- wherein optical distances traversed by each beam from its emitter to the shared exit point are all equal to each other, and
- wherein a beam size of the beam stack in a stacking direction is substantially equal to Δy×N+b, N being equal to a number of the beam emitters and b being equal to a size of each beam in the stacking direction.
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Dependencies are inferred from the claim text.