Abstract
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 language | English |
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Pages (from-to) | 2486-2489 |
Number of pages | 4 |
Journal | Optics Letters |
Volume | 43 |
Issue number | 11 |
DOIs | |
Publication status | Published - 1 Jun 2018 |