Cavity-enhanced parametric down-conversion as a source of correlated photons |
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| Authors: | P Hariharan B C Sanders |
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| Affiliation: | 1. School of Physics , University of Sydney , New South Wales, 2006, Australia;2. Department of Physics , Macquarie University , Sydney, New South Wales, 2109, Australia |
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| Abstract: | Abstract The most common way of generating correlated photons is by parametric down-conversion in a nonlinear crystal in free space. However, a drawback of this technique is the extremely low photon flux available. We present a simple analysis which shows that cavity-enhanced parametric downconversion, using an arrangement similar to an optical parametric oscillator and operated well below threshold, can yield a substantially higher photon flux without significantly degrading the correlation between photons. |
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