Broadband squeezing of light by pulse excitation
- 15 October 1990
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 15 (20) , 1153-1155
- https://doi.org/10.1364/ol.15.001153
Abstract
Broadband squeezed states of the electromagnetic field are generated by degenerate parametric downconversion with pulse-light excitation in a Ba2NaNb5O15 crystal, in which noncritical type I phase matching is attained. Noise reduction below the level of the vacuum fluctuation is clearly observed over a detection bandwidth from dc to approximately 70 MHz. The minimum noise level obtained in the quiet quadrature is 1.1 dB below the shot-noise level. The scheme used in the present experiment is simple and promising for further improvement of squeezing. The relation between squeezing and parametric fluorescence is discussed quantitatively for the first time to the authors' knowledge.Keywords
This publication has 12 references indexed in Scilit:
- Generation of squeezed light by intracavity frequency doublingPhysical Review A, 1988
- Pulsed Squeezed LightPhysical Review Letters, 1987
- Squeezed-light–enhanced polarization interferometerPhysical Review Letters, 1987
- Squeezed states of light from an optical parametric oscillatorJournal of the Optical Society of America B, 1987
- Generation of Squeezed States by Parametric Down ConversionPhysical Review Letters, 1986
- Broad-Band Parametric Deamplification of Quantum Noise in an Optical FiberPhysical Review Letters, 1986
- Observation of Squeezed States Generated by Four-Wave Mixing in an Optical CavityPhysical Review Letters, 1985
- Squeezed states of lightNature, 1983
- Photon Antibunching and Possible Ways to Observe ItPhysical Review Letters, 1974
- Information Theory of Quantum-Mechanical ChannelsPublished by Elsevier ,1965