High contrast all-optical diode based on direction-dependent optical bistability within asymmetric ring cavityProject supported by the National Natural Science Foundation of China (Grant Nos. 11274242, 11474221, and 11574229), the Joint Fund of the National Natural Science Foundation of China and the China Academy of Engineering Physics (Grant No. U1330203), and the National Key Basic Research Special Foundation of China (Grant Nos. 2011CB922203 and 2013CB632701)

We propose a simple all-optical diode which is comprised of an asymmetric ring cavity containing a two-level atomic ensemble. Attributed to spatial symmetry breaking of the ring cavity, direction-dependent optical bistability is obtained in a classical bistable system. Therefore, a giant optical non...

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Bibliographic Details
Published in:Chinese physics B 2016-06, Vol.25 (8)
Main Authors: Xia, Xiu-Wen, Zhang, Xin-Qin, Xu, Jing-Ping, Yang, Ya-Ping
Format: Article
Language:English
Subjects:
optical bistability
optical diode
optical logic gate
Online Access:Get full text
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Summary:We propose a simple all-optical diode which is comprised of an asymmetric ring cavity containing a two-level atomic ensemble. Attributed to spatial symmetry breaking of the ring cavity, direction-dependent optical bistability is obtained in a classical bistable system. Therefore, a giant optical non-reciprocity is generated, which guarantees an all-optical diode with a high contrast up to 22 dB. Furthermore, its application as an all-optical logic AND gate is also discussed.
ISSN:1674-1056
DOI:10.1088/1674-1056/25/8/084211