Systems and methods for alignment of wavelength beam combining resonators
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsWang-Long Zhou, Bien Chann, Krzysztof Michal Nowak, Francisco Villarreal-Saucedo
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Abstract
In various embodiments, alignment systems for laser resonators generate near-field and/or far-field images of input beams produced by the laser resonators to enable the alignment of the input beams.
Claims29
An alignment system for use with a laser resonator that spatially overlaps multiple input beams along a wavelength-beam-combining (WBC) dimension and outputs a resulting output beam from a beam output, wherein (i) the WBC dimension corresponds to one of a fast axis or a slow axis of the input beams, and (ii) a non-WBC dimension corresponds to the other one of the fast axis or the slow axis of the input beams and is perpendicular to the WBC dimension, the alignment system comprising:
- a dispersive element for receiving the output beam and dispersing the output beam to generate a plurality of dispersed beams in the WBC dimension;
- a beam profiler for receiving the plurality of dispersed beams and generating images of relative positions of the dispersed beams received by the beam profiler;
- disposed optically downstream of the beam output and optically upstream of the beam profiler, a first lens having optical power in the non-WBC dimension;
- and
- disposed optically downstream of the dispersive element and optically upstream of the beam profiler, a second lens, having optical power in the WBC dimension, for focusing the dispersed beams on the beam profiler,
- wherein the dispersive element comprises a diffraction grating.
Dependencies are inferred from the claim text.