  Wave-particle duality is one of the most striking and counter-intuitive
features of quantum mechanics, illustrating that two incompatible observables
cannot be measured simultaneously with arbitrary precision. In this work, we
experimentally demonstrate the equivalence of wave-particle duality and
entropic uncertainty relations using orbital angular momentum (OAM) states of
light. Our experiment utilizes an innovative and reconfigurable platform
composed of few-mode optical fibers and photonic lanterns, showcasing the
versatility of this technology for quantum information processing. Our results
provide fundamental insights into the complementarity principle from an
informational perspective, with implications for the broader field of quantum
technologies.
