Abstract

We consider optical properties of hypergeometric-Gaussian beam compositions with spiral-like intensity and phase distributions called spiroid beams. Their orbital angular momentum as a function of a fractional-order topological charge has a chain of super-pulses (bursts and dips). The form of the super-pulses can be controlled by the spiral parameters. Such a phenomenon can be used in optical switches and triggers for optical devices and communication systems.

© 2017 Optical Society of America

Super bursts of the orbital angular momentum in astigmatic-invariant structured LG beams

A. Volyar, E. Abramochkin, Y. Akimova, and M. Bretsko
Opt. Lett. 47(21) 5537-5540 (2022)

Fractional orbital angular momentum conversion in second-harmonic generation with an asymmetric perfect vortex beam

Kunjian Dai, J. Keith Miller, Wenzhe Li, Richard J. Watkins, and Eric G. Johnson
Opt. Lett. 46(14) 3332-3335 (2021)

Control of orbital angular momentum with partially coherent vortex beams

Yongtao Zhang, Yangjian Cai, and Greg Gbur
Opt. Lett. 44(15) 3617-3620 (2019)

Orbital angular momentum and informational entropy in perturbed vortex beams

A. Volyar, M. Bretsko, Ya. Akimova, and Y. Egorov
Opt. Lett. 44(23) 5687-5690 (2019)

Tunable higher-order orbital angular momentum using polarization-maintaining fiber

Brendan M. Heffernan, Robert D. Niederriter, Mark E. Siemens, and Juliet T. Gopinath
Opt. Lett. 42(14) 2683-2686 (2017)