Photonics Research

Electromagnetically induced transparency-like effect in a lithium niobate resonator via electronic control

Liu Yang, Yongyong Zhuang, Yifan Zhang, Yaojing Zhang, Shuangyou Zhang, Zhuo Xu, Pascal Del’Haye, Xiaoyong Wei

Published Mar 2, 2023• 9 citations

Abstract

In this study, we theoretically proposed a method to achieve an electromagnetically induced transparency (EIT)-like effect in a whispering gallery mode resonator (WGMR) and experimentally validated the method in a lithium niobate (LN) device. Benefitting from the electro-optic and inverse piezoelectric effects of the LN material, two modes of the LN WGMR that are close in frequency can be tuned at different tuning rates, resulting in EIT-like resonance lineshapes. By varying the electric field applied to the LN WGMR, the full dynamic of the EIT-like phenomenon can be precisely controlled. The experimental results agreed well with the calculations based on the coupled mode theory. Moreover, we observed a hysteresis resulting from the photorefractive effect of LN. We believe our proposed method and demonstrated devices offer a way to control an EIT-like effect, which could have potential applications in light storage, quantum information processing, and enhanced sensing techniques.

DOI: 10.1364/prj.484403

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