Observation of continuous-wave squeezed light at 1550 nm
arXiv:0902.0670 · doi:10.1364/OL.34.001060
Abstract
We report on the generation of continuous-wave squeezed vacuum states of light at the telecommunication wavelength of 1550 nm. The squeezed vacuum states were produced by type I optical parametric amplification (OPA) in a standing-wave cavity built around a periodically poled potassium titanyl phosphate (PPKTP) crystal. A non-classical noise reduction of 5.3 dB below the shot noise was observed by means of balanced homodyne detection.
4 pages, 3 figures