Back-Action Evading Measurements of an Optical Field Using Parametric Down Conversion
- 2 January 1989
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 62 (1) , 28-31
- https://doi.org/10.1103/physrevlett.62.28
Abstract
A simple experimental arrangement demonstrates back-action evasion of noise in a quantum measurement of an optical field. Correlation between the photocurrents from a measured signal beam and a measurement readout beam is 0.6 dB below the shot-noise limit. The measurement is accomplished by use of a single-pass parametric down-conversion process.Keywords
This publication has 9 references indexed in Scilit:
- Optical quantum nondemolition detection schemes in χ(2) mediaOptics Communications, 1987
- Pulsed Squeezed LightPhysical Review Letters, 1987
- Squeezed-light–enhanced polarization interferometerPhysical Review Letters, 1987
- Quantum Nondemolition Detection of Optical Quadrature AmplitudesPhysical Review Letters, 1986
- Optical back-action-evading amplifiersJournal of the Optical Society of America B, 1985
- Guided acoustic-wave Brillouin scatteringPhysical Review B, 1985
- Quantum noise and excess noise in optical homodyne and heterodyne receiversIEEE Journal of Quantum Electronics, 1985
- On the measurement of a weak classical force coupled to a quantum-mechanical oscillator. I. Issues of principleReviews of Modern Physics, 1980
- Quantum Nondemolition Measurements of Harmonic OscillatorsPhysical Review Letters, 1978