title: Proposal for the generation of photon pairs with nonzero orbital angular momentum in a ring fiber.
abstract: We present a method for the generation of correlated photon pairs in desired orbital-angular-momentum states using a non-linear silica ring fiber and spontaneous parametric down-conversion. Photon-pair emission under quasi-phase-matching conditions with quantum conversion efficiency 6 × 10(-11) is found in a 1-m long fiber with a thermally induced χ(2) nonlinearity in a ring-shaped core.
authors.forename: D
authors.initials: D
authors.lastname: Javůrek
authors.forename: J
authors.initials: J
authors.lastname: Svozilík
authors.forename: J
authors.initials: J
authors.lastname: Peřina
mesh_terms: D003198:Computer Simulation; D004867:Equipment Design; D008027:Light; D017785:Photons; D011789:Quantum Theory; D012459:Salicylates; D012542:Scattering, Radiation
chemical_list: D012459:Salicylates; C496892:Magnesium Salicylate