Abstract
We investigated the propagation of a squeezed optical field, generated via the polarization self-rotation effect, with a sinusoidally modulated degree of squeezing through an atomic medium with anomalous dispersion. We observed the advancement of the signal propagating through a resonant Rb vapor compared to the reference signal, propagating in air. The measured advancement time grew linearly with atomic density, reaching a maximum of , which corresponded to a negative group velocity of . We also confirmed that the increasing advancement was accompanied by a reduction of output squeezing levels due to optical losses, in good agreement with theoretical predictions.
© 2014 Optical Society of America
Full Article | PDF ArticleMore Like This
N. Otterstrom, R. C. Pooser, and B. J. Lawrie
Opt. Lett. 39(22) 6533-6536 (2014)
K. Qian, L. Zhan, L. Zhang, Z. Q. Zhu, J. S. Peng, Z. C. Gu, X. Hu, S. Y. Luo, and Y. X. Xia
Opt. Lett. 36(12) 2185-2187 (2011)
Huijuan He, Zhengfeng Hu, Yuzhu Wang, Ligang Wang, and Shiyao Zhu
Opt. Lett. 31(16) 2486-2488 (2006)