Orbital angular momentum symmetry in a driven optical parametric oscillator

R. B. Rodrigues, Junior R.Gonzales Ureta, B. Pinheiro da Silva, J. A.O. Huguenin, M. Martinelli, R. Medeiros de Araújo, C. E.R. Souza, A. Z. Khoury

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We investigate the dynamics of a driven optical parametric oscillator under the injection of orbital angular momentum. The injected mode is adiabatically driven through arbitrary transformations on the Poincaré sphere of first-order paraxial beams. As a result, the down-converted beam conjugated to the seed is shown to follow a path imposed by a nontrivial symmetry on the Poincaré sphere. This symmetry allows controllable distinguishability between the spatial modes of the down-converted beams. In this Letter, we provide convincing experimental evidence of this effect.
Original languageSpanish
Pages (from-to)2486-2489
Number of pages4
JournalOptics Letters
StatePublished - 1 Jun 2018

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