  We recently introduced a new class of optical beams with a Bessel-like
transverse profile and increasing beam width during propagation, akin to an
"inverted pin". Owing to their specially engineered distribution, these beams
have shown remarkable performance in atmospheric turbulence. Specifically,
inverted pin beams were found to have reduced scintillation index as compared
to collimated or focused Gaussian beams as well as other types of pin beams
especially in moderate to strong turbulence. In this work, we demonstrate that
inverted pin beams carrying orbital angular momentum can further suppress
intensity scintillations in moderate to strong irradiance fluctuation
conditions. Our results can be useful in improving the performance and link
availability of free-space optical communication systems.
