22 April 2016 Observation of optically induced transparency in a micro-cavity
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We report on the observation of optically induced transparency (OIT) in a compact microresonator in an ambient environment by introducing a four-wave mixing gain to nonlinearly couple two separated resonances of the micro-cavity. Its optical-controlling capacity and non-reciprocity characteristics at the transparency windows are also demonstrated. Active-controlling of the OIT can be achieved by varying a strong pump beam, while a small frequency-detuning of the pump can lead to a Fano-like asymmetric resonance justifying the interference nature of OIT. Furthermore, OIT observed here is a non-reciprocal one, since FWM gain is a unidirectional one owing to the conservation law of momentum.
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Yuanlin Zheng, Yuanlin Zheng, Jianjun Cao, Jianjun Cao, Wenjie Wan, Wenjie Wan, } "Observation of optically induced transparency in a micro-cavity", Proc. SPIE 9727, Laser Resonators, Microresonators, and Beam Control XVIII, 972705 (22 April 2016); doi: 10.1117/12.2211622; https://doi.org/10.1117/12.2211622

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