We report the first experimental generation of bright frequency-degenerate EPR-beams with a type-II OPO. Degeneracy is obtained by introducing a birefringent plate inside the cavity, resulting in phase locking. EPR-correlation is characterized by homodyne detection.
© 2008 Optical Society of America
V. D'Auria, G. Keller, N. Treps, T. Coudreau, J. Laurat, and C. Fabre, "Experimental Generation of Frequency-Degenerate Bright EPR Beams with a Self-Locked Optical Parametric Oscillator," in International Conference on Quantum Information, (Optical Society of America, 2008), paper QMA5.
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