# Topological edge state cavities: simultaneous enhancement of quality factor and free spectral range

## TL;DR

This paper introduces a new type of cavity that improves both performance and efficiency in photonic devices.

## Contribution

The paper presents a novel topological edge state cavity that simultaneously enhances quality factor and free spectral range.

## Key findings

- A topological edge state cavity was realized for enhanced performance.
- The cavity improves both quality factor and free spectral range simultaneously.
- This advancement supports robust high-performance photonic integrated devices.

## Abstract

A novel topological edge state cavity has been realized to enhance the quality factor and free-spectral range, simultaneously, which opens avenues for developing robust high-performance photonic integrated devices.