Spatially single-mode source of bright squeezed vacuum
arXiv:1402.2771 · doi:10.1364/OL.39.002403
Abstract
Bright squeezed vacuum, a macroscopic nonclassical state of light, can be obtained at the output of a strongly pumped non-seeded traveling-wave optical parametric amplifier (OPA). By constructing the OPA of two consecutive crystals separated by a large distance we make the squeezed vacuum spatially single-mode without a significant decrease in the brightness or squeezing.
5 pages, 5 figures