Abstract
Squeezed light generated by four-wave mixing near the Na atomic resonance is compared with a full quantum-theoretical model. Losses and dephasing that are due to spontaneous emission near the atomic resonance are included in this theoretical treatment. The experimental results show noise reduction greater than 1 dB below the standard quantum limits and are in good agreement with the quantum model at low pump intensities and large detuning. Theory and experiment show that limits to squeezed-light noise reduction resulting from spontaneous-emission losses can be largely avoided by using nondegenerate four-wave mixing and pump intensities near the atomic saturation values.
© 1987 Optical Society of America
Full Article | PDF ArticleMore Like This
C. M. Savage and D. F. Walls
J. Opt. Soc. Am. B 4(10) 1514-1519 (1987)
L. A. Orozco, M. G. Raizen, Min Xiao, R. J. Brecha, and H. J. Kimble
J. Opt. Soc. Am. B 4(10) 1490-1500 (1987)
Seng-Tiong Ho, Prem Kumar, and Jeffrey H. Shapiro
J. Opt. Soc. Am. B 8(1) 37-57 (1991)