Amplified slow light beam splitter and 1 s optical memory

Shuo Shen; Xiwei Xu; Yanhong Xiao

doi:10.1117/1.OE.53.10.102703

27 June 2014 Amplified slow light beam splitter and 1 s optical memory

Shuo Shen, Xiwei Xu, Yanhong Xiao

Author Affiliations +

Optical Engineering, Vol. 53, Issue 10, 102703 (June 2014). https://doi.org/10.1117/1.OE.53.10.102703

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.

Citation Download Citation

Shuo Shen, Xiwei Xu, and Yanhong Xiao "Amplified slow light beam splitter and 1 s optical memory," Optical Engineering 53(10), 102703 (27 June 2014). https://doi.org/10.1117/1.OE.53.10.102703

Published: 27 June 2014

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