Year: 2026
Type: article
Abstract: In this work, a comparative study of hollow-core fiber (HCF) Fabry–Perot interferometer (FPI) high-temperature sensors is carried out, where systematically investigations with both theory and experiments are performed. The sensing mechanisms of three types of HCF sensors (i.e., HCF silica-cavity FPI, sealed HCF air-cavity FPI, and opened HCF air-cavity FPI) are analyzed and compared in theory, and the temperature responses of these sensors are studied in experiments, which agree well with the theoretical analysis. This work may provide a valuable reference and guidance for the design, fabrication, and application of HCFs in high-temperature sensing fields.
Source: Journal of Applied Physics
DOI: 10.1063/5.0309644
Institution: Shenzhen Technology University
Language: English
Topic: Advanced Fiber Optic Sensors
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,500
OpenAlex ID: W7124418040