Observation of continuous-wave squeezed light at 1550 nm

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

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Cited by in corpus (7)

• Squeezed states of light and their applications in laser interferometers
• Squeezed light at 1550 nm with a quantum noise reduction of 12.3 dB
• Strong Einstein-Podolsky-Rosen entanglement from a single squeezed light source
• Quasiphasematched concurrent nonlinearities in periodically poled KTiOPO_4 for quantum computing over the optical frequency comb
• Continuous-Variable Nonclassicality Detection under Coarse-Grained Measurement
• Squeezed-light interferometry on a cryogenically-cooled micro-mechanical membrane
• Quantum Metrology under Coarse-Grained Measurement