If you want the real thing, get a beam splitter. I'm not naming names or really saying anything credible at all, but electronic noise isn't in the same ballpar

If you want the real thing, get a beam splitter. I'm not naming names or really saying anything credible at all, but electronic noise isn't in the same ballpark. These folks have them available for PCI and USB: http://www.idquantique.com/products/quantis.htm http://www.idquantique.com/products/quantis.htm (no I'm not affiliated in any way)