High-resolution, Fast-response Optical Fiber Temperature Sensor with a Large Measurement Range based on Fiber-tip Alumina Fabry-Pérot Interferometer

Abstract

We present an alumina-tip optical fiber Fabry-Pérot interferometric temperature sensor exhibiting high-temperature performance, rapid response, and high resolution. Fabricated by fusion splicing an alumina microdisk directly to a single-mode fiber, the sensor achieves robust, stable operation without complex fabrication processes or adhesives. Experimental evaluation confirms a measurement range extending to 1000°C, with sensitivity of 28.66 pm/°C, a resolution of 0.042°C, and a rapid response time of approximately 13 ms. Compared to state-of-the-art optical fiber FPI sensors, our alumina-tip sensor offers superior overall performance, effectively addressing critical demands for high-resolution, fast-response temperature measurement in extreme environments including aerospace, structural monitoring, metallurgy, and emerging flash-based thermal processing technologies.

Department(s)

Electrical and Computer Engineering

Second Department

Economics

Third Department

Civil, Architectural and Environmental Engineering

Publication Status

Early Access

Keywords and Phrases

Fabry-Pérot interferometer; Fast response; Optical fiber sensing

International Standard Serial Number (ISSN)

1558-2213; 0733-8724

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2026 Institute of Electrical and Electronics Engineers; Optica Publishing Group, All rights reserved.

Publication Date

01 Jan 2026

This document is currently not available here.

Share

 
COinS