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Optical Engineering

Amplified slow light beam splitter and 1 s optical memory
Author(s): Shuo Shen; Xiwei Xu; Yanhong Xiao
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Paper Abstract

Using atomic motion to coherently spread light information stored in atoms provides a means to manipulate atom-light interactions. We demonstrate light splitting with moving atoms in a paraffin-coated vapor cell by using phase-sensitive degenerate four-wave mixing, or self-rotation. This scheme amplifies the slow light beam splitter signal, and, in the meantime, maintains the phase coherence between the beam-splitter channels. Light storage efficiency in the beam-splitting channel can also be enhanced. Furthermore, we demonstrate an optical memory exceeding 1 s, taking advantage of the gain from self-rotation and an atomic coherence composed of a fast-decaying part and a slow-decaying part. These results should find applications in optical memory, optical routers, and atomic coherence control.

Paper Details

Date Published: 27 June 2014
PDF: 7 pages
Opt. Eng. 53(10) 102703 doi: 10.1117/1.OE.53.10.102703
Published in: Optical Engineering Volume 53, Issue 10
Show Author Affiliations
Shuo Shen, Fudan Univ. (China)
Xiwei Xu, Fudan Univ. (China)
Yanhong Xiao, Fudan Univ. (China)

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