Electromagnetically induced transparency lasing in distributed resonant feedback system
Abstract
We demonstrate a loss-enabled mechanism that can realize single electromagnetically induced transparency (EIT) analogue in periodic waveguide-resonator structures. Unlike previously reported passband-based EIT analogues, which arise from compressed passbands in the intrinsic-loss-free limit, the proposed mechanism exploits resonator intrinsic loss to generate an isolated transparency mode within the original bandgap. The resulting EIT state remains immune to finite-size mode discretization, enabling robust single-frequency lasing through distributed resonant feedback while requiring a threshold modal gain lower than that of an equally long Fabry-Perot laser. Our findings extend classical EIT analogues from passive spectral phenomena to active laser operation.
Cite
@article{arxiv.2607.15783,
title = {Electromagnetically induced transparency lasing in distributed resonant feedback system},
author = {Yaoyao Liang and Xinyue Wang and Hongyi Tian and Yulong Fan and Qi Qin and Feihu Wang},
journal= {arXiv preprint arXiv:2607.15783},
year = {2026}
}