Digital generation of partially coherent vortex beams

Digital generation of partially coherent vortex beams

We present an experimental technique to generate partially coherent vortex beams with an arbitrary azimuthal index using only a spatial light modulator. Our approach is based on digitally simulating the intrinsic randomness of broadband light passing through a spiral phase plate. We illustrate the v...

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Veröffentlicht in:Optics letters 2016-08, Vol.41 (15), p.3471-3474
Hauptverfasser: Perez-Garcia, Benjamin, Yepiz, Adad, Hernandez-Aranda, Raul I, Forbes, Andrew, Swartzlander, Grover A
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container_end_page 3474
container_issue 15
container_start_page 3471
container_title Optics letters
container_volume 41
creator Perez-Garcia, Benjamin
Yepiz, Adad
Hernandez-Aranda, Raul I
Forbes, Andrew
Swartzlander, Grover A
description We present an experimental technique to generate partially coherent vortex beams with an arbitrary azimuthal index using only a spatial light modulator. Our approach is based on digitally simulating the intrinsic randomness of broadband light passing through a spiral phase plate. We illustrate the versatility of the technique by generating partially coherent beams with different coherence lengths and orbital angular momentum content, without any moving optical device. Consequently, we study its cross-correlation function in a wavefront folding interferometer. The comparison with theoretical predictions yields excellent agreement.
doi_str_mv 10.1364/OL.41.003471
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