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Proceedings Paper

Generation of vortex beams using holographic phase masks in photo-thermo-refractive glass (Conference Presentation)
Author(s): Oussama Mhibik; Zachary Labossiere; Ivan Divliansky; Leonid Glebov

Paper Abstract

We present a high-power capable, simple, tunable, and robust vortex beam generator. Initial phase profiles are generated using a Spatial Light Modulator and then holographically encoded into a Transmitting Volume Bragg Grating (TBG) resulting in fabrication of a Holographic Phase Mask (HPM). Such HPMs could be used for mode conversion (e.g. Gaussian to vortex) at high power due to low absorption and low nonlinear refractive index of photo-thermo-refractive glass. Unlike monochromatic conventional phase mask, adjustment of an incidence angle on the HPM results in conservation of the phase information incurred into the beam making HPM tunable.

Paper Details

Date Published: 9 March 2020
Proc. SPIE 11266, Laser Resonators, Microresonators, and Beam Control XXII, 112660Y (9 March 2020); doi: 10.1117/12.2544387
Show Author Affiliations
Oussama Mhibik, Univ. of Central Florida (United States)
Zachary Labossiere, Univ. of Central Florida (United States)
Ivan Divliansky, Univ. of Central Florida (United States)
Leonid Glebov, Univ. of Central Florida (United States)

Published in SPIE Proceedings Vol. 11266:
Laser Resonators, Microresonators, and Beam Control XXII
Alexis V. Kudryashov; Alan H. Paxton; Vladimir S. Ilchenko; Andrea M. Armani, Editor(s)

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