Classic analogue of Autler-Townes-splitting transparency using a single magneto-optical ring resonator
Liting Wu(吴利婷)1,†, Wenkang Cao(曹文康)2, and Haolin Jiang(蒋昊林)3
1 School of Information and Communication Engineering, Nanjing Institute of Technology, Nanjing 211167, China; 2 School of Mechanical Engineering, Guizhou University, Guiyang 550025, China; 3 School of Electronics and Information Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, China
Abstract We show that an optical transparency can be obtained by using only one single magneto-optical ring resonator. This effect is based on the splitting of counterclockwise and clockwise modes in the ring resonator. Within a proposed resonator-waveguide configuration the superposition between the two degeneracy broken modes produces a transparency window, which can be closed, open, and modified by tuning the applied magnetic field. This phenomenon is an analogue of Autler-Townes splitting, and the magnetic field is equivalent to the strong external pump field. We provide a theoretic analysis on the induced transparency, and numerically demonstrate the effect using full-wave simulation. Feasible implication of this effect and its potential applications are also discussed.
Fund: This work was supported by the National Natural Science Foundation of China (Grant No. 12104227), the Scientific Research Foundation of Nanjing Institute of Technology (Grant No. YKJ202021), and the Guizhou Provincial Science and Technology Projects (Grant No. ZK[2022] general 035).
Liting Wu(吴利婷), Wenkang Cao(曹文康), and Haolin Jiang(蒋昊林) Classic analogue of Autler-Townes-splitting transparency using a single magneto-optical ring resonator 2023 Chin. Phys. B 32 104201
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