Analogue to multiple electromagnetically induced transparency in all-optical drop-filter systems

TL;DR

This paper theoretically investigates a parallel optical system with multiple coupled resonators, demonstrating multiple transparency windows analogous to electromagnetically induced transparency, with potential practical implementations.

Contribution

It introduces a novel all-optical drop-filter system exhibiting multiple EIT-like effects using coupled whispering-gallery-mode resonators.

Findings

Sharp and highly transparent frequency windows observed

Numerical simulations confirm the EIT-like phenomena

Discusses feasibility in microring and microdisk systems

Abstract

We theoretically study a parallel optical configuration which includes N periodically coupled whispering-gallery-mode resonators. The model shows an obvious effect which has a direct analogy with the phenomenon of multiple electromagnetically induced transparency in quantum systems. The numerical simulations illuminate that the frequency transparency windows are sharp and highly transparent. We also briefly discuss the experimental feasibility of the current scheme in two practical systems, microrings and microdisks.