Compound-induced transparency in three-cavity coupled structure
Hao-Ye Qin(秦昊烨)1, Yi-Heng Yin(尹贻恒)1, and Ming Ding(丁铭)1,2,†
1 School of Instrumentation and Opto-Electronics Engineering, Beihang University, Beijing 100191, China; 2 Research Institute of Frontier Science, Beihang University, Beijing 100191, China
Abstract We propose a three-cavity coupled cavity optomechanical (COM) structure with tunable system parameters and theoretically investigate the probe-light transmission rate. Numerical calculation of the system's spectra demonstrates distinctive compound-induced transparency (CIT) characteristics, including multiple transparency windows and sideband dips, which can be explained by a coupling between optomechanically-induced transparency (OMIT) and electromagnetically-induced transparency. The effects of optical loss (gain) in the cavity, number and topology of active cavity, tunneling ratio, and pump laser power on the CIT spectrum are evaluated and analyzed. Moreover, the optical group delay of CIT is highly controllable and fast-slow light inter-transition can be achieved. The proposed structure makes possible the advantageous tuning freedom and provides a potential platform for controlling light propagation and fast-slow light switching.
Hao-Ye Qin(秦昊烨), Yi-Heng Yin(尹贻恒), and Ming Ding(丁铭) Compound-induced transparency in three-cavity coupled structure 2020 Chin. Phys. B 29 124208
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