# Towards lasing systems for distributed fibre sensing

**Authors:** Luc Thévenaz

PMC · DOI: 10.1038/s41377-026-02217-5 · Light, Science & Applications · 2026-02-24

## TL;DR

This paper introduces a new fiber sensing method where the fiber acts as a laser cavity, improving accuracy and speed over traditional methods.

## Contribution

The paper presents a novel laser-based sensing system using the fiber itself as a cavity for uniform signal quality.

## Key findings

- Using the fiber as a laser cavity improves signal quality regardless of position.
- Synchronous pumping enables uniform performance across distances.
- This approach addresses traditional range limitations in fiber sensing.

## Abstract

A novel concept for distributed fiber sensing has recently been introduced, in which the sensing fiber itself forms a laser cavity. This configuration yields a high-quality response that is largely independent of position, thereby enhancing measurement accuracy and acquisition speed, and opening new avenues towards higher-performance sensing technologies.

Synchronous pumping enables laser-based distributed fiber sensors to achieve uniform signal quality regardless of distance, addressing traditional range limitations and advancing flexible, high-performance sensing capabilities.

## Full-text entities

- **Chemicals:** silica (MESH:D012822)

## Full text

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## Figures

2 figures with captions in the complete paper: https://tomesphere.com/paper/PMC12932627/full.md

## References

2 references — full list in the complete paper: https://tomesphere.com/paper/PMC12932627/full.md

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Source: https://tomesphere.com/paper/PMC12932627