A method is proposed for the analog modeling of the geometry of five-dimensional anti-de Sitter (AdSu2085) space using a magneto-optical cell containing a terbium-gallium garnet (TGG) single crystal placed in a longitudinal magnetic field. It is shown that the formal correspondence between the eikonal equation for a photon mode in a gyrotropic medium and the geodesic equation in an effective optical metric allows the propagation of radiation to be interpreted as motion within a curved five-dimensional subspace. Based on the solution to the Klein—Gordon boundary-value problem for the fundamental Kaluza—Klein mode within a flat, compact interval—subject to Neumann—Dirichlet boundary conditions—a trigonometric profile for the temporal component of the effective metric has been derived. An emergent gauge parameter, $L_{text{AdS}} = 170 text{ μm}$, is linked to the measurable Faraday rotation angle via the AdS/CFT holographic dictionary. It is predicted that, at the point of spatial-geometric parameter balance for the simulator ($B^* = 2.0 text{ T}$), a non-monotonic, asymmetric dip in the phase-noise spectral density will emerge—a phenomenon described by a nonlinear coupling equation. This effect is fundamentally distinct from classical Faraday rotation and cannot be realized in standard optical isolators.