Use of parametric down-conversion to generate sub-Poissonian light
- 1 April 1988
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 37 (8), 2963-2967
- https://doi.org/10.1103/physreva.37.2963
Abstract
Two highly noise-correlated light beams are generated by nondegenerate parametric down-conversion. We report the production of sub-Poissonian light in one of the beams by using negative feedback (to the pump) from the other. This nonclassical light source has a postdetection Fano factor of 0.78 over a limited frequency range near 50 Hz with an intensity of about 60 pW.Keywords
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