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Updated: Jun 14, 2026

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
Published on: May 30, 2014
Continuous-variable hyperentanglement in a parametric oscillator with orbital angular momentum
B Coutinho dos Santos1, K Dechoum, A Z Khoury
1Instituto de Física, Universidade Federal Fluminense, 24210-346, Niterói-RJ, Brazil.
Abstract:
We describe continuous-variable hyperentanglement in polarization and orbital angular momentum modes of an optical parametric oscillator. The quantum stochastic equations for the multimode parametric interaction are derived and solved allowing for calculation of the quadrature noise spectra that characterize continuous-variable entanglement. As a main result, we predict simultaneous entanglement between different combinations of amplitude and phase quadratures of the interacting modes. We also propose experimental setups to access the different kinds of entanglement.
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