High contrast all-optical diode based on direction-dependent optical bistability within asymmetric ring cavity

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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Published inChinese physics B Vol. 25; no. 8; pp. 206 - 210
Main Author 夏秀文 张新琴 许静平 羊亚平
Format Journal Article
LanguageEnglish
Published 01.08.2016
Subjects
Asymmetry
Broken symmetry
Diodes
Gates
Holes
Logic
Optical bistability
不对称
光二极管
光学双稳态
全光逻辑
双稳系统
对称性破缺
环腔
高对比度
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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 d B. Furthermore, its application as an all-optical logic AND gate is also discussed.
Bibliography: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 d B. Furthermore, its application as an all-optical logic AND gate is also discussed.
Xiu-Wen Xia, Xin-Qin Zhang, Jing-Ping Xu, Ya-Ping Yang（ 1 School of Mathematics and Physics, Jinggangshan University, Ji＇an 343009, China; 2 MOE Key laboratory of Advanced Micro-structure Materials, School of Physics Science and Engineering, Tongji University, Shanghai 200092, China）
optical diode, optical bistability, optical logic gate
11-5639/O4
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1674-1056
2058-3834
1741-4199
DOI:10.1088/1674-1056/25/8/084211