Enhanced temperature sensing by multi-mode coupling in an on-chip microcavity system

TL;DR

This paper demonstrates that multi-mode coupling in an on-chip microcavity system can significantly enhance temperature sensing resolution by leveraging mode interactions to overcome traditional limitations.

Contribution

The study introduces a novel multi-mode coupling approach in on-chip microcavities to improve sensing resolution beyond conventional limits.

Findings

Enhanced temperature sensing resolution achieved

Multi-mode coupling effectively improves sensor performance

On-chip integration enables compact and efficient sensors

Abstract

The micro-cavity is a promising sensor platform, any perturbation would disturb its linewidth, cause resonance shift or splitting. However, such sensing resolution is limited by the cavity's optical quality factor and mode volume. Here we propose and demonstrate in an on-chip integrated microcavity system that resolution of a self referenced sensor could be enhanced with multi mode coupling.