Chinese Optics Letters, 2017, 15 (9): 092702, Published Online: Jul. 19, 2018  

Tunable interaction-free all-optical switching in a five-level atom-cavity system Download: 750次

Author Affiliations
College of Physics, East China University of Science and Technology, Shanghai 200237, China
Abstract
A scheme is proposed for tunable all-optical switching based on the double-dark states in a five-level atom-cavity system. In the scheme, the output signal light of the reflection and the transmission channels can be switched on or off by manipulating the control field. When the control light is coupled to the atom-cavity system, the input signal light is reflected by the cavity. Thus, there is no direct coupling between the control light and the signal light. Furthermore, the position of the double-dark states can be changed by adjusting the coherent field, and, thus, the switching in our scheme is tunable. By presenting the numerical calculations of the switching efficiency, we show that this type of the interaction-free all-optical switching can be realized with high switching efficiency.

Tiantian Liu, Gongwei Lin, Fengxue Zhou, Li Deng, Shangqing Gong, Yueping Niu. Tunable interaction-free all-optical switching in a five-level atom-cavity system[J]. Chinese Optics Letters, 2017, 15(9): 092702.

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