Spectral beam combination using broad bandwidth lasers

Details Spectral beam combination using broad bandwidth lasers Spectral beam combination using broad bandwidth lasers

2011-05-24

2011-05-24

Pritchett, Joshua L (Department: 2872)

Optical: systems and elements

Diffraction

From grating

C359S571000

Reexamination Certificate

active

07948680

ABSTRACT:
The present invention provides systems and methods for spectral beam combination by applying a spatial chirp to each of a plurality of input beamlets using a respective plurality of dispersive elements and combining the spatially-chirped beamlets into a single collimated output beam using a dispersive element configured to remove the spatial chirp. In an embodiment, each dispersive element is a grating combined with a lens that is confocal to the grating and also confocal to a Fourier plane upon which a transverse distribution of beam spectral components is produced. A final lens-grating pair includes a lens and a grating, where the lens is confocal to the grating and also confocal to the Fourier plane.

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