From Multimode Nonlinear Optics to HighDimensional Quantum Communications |
Abstract: | Abstract
Quantum photonics often relies on nonlinear optics for the generation of photons, followed by reconfigurable linear optical networks for coherent control. In this talk, I will review our study of multimode nonlinear optics in fibers, which also enabled our realization of an all-fiber entangled photon pairs source. These photons are spatially entangled in the eigenmodes of the multimode fiber, allowing for high-dimensional quantum communications. I will then present a couple of methods to coherently control such states. The first is achieved by multiplane light conversion based on a spatial light modulator, while the second is by employing a “Fiber piano”; a piezo-actuator array that deforms the multimode fiber. Finally, I will introduce a novel Quantum Key Distribution protocol that utilizes high-dimensional encoding to boost the secure key rate and its experimental implementation
oin Zoom Meeting https://technion.zoom.us/j/96429885148 |