Design of Real-Time Demodulation for FBG Sensing Signals Based on All-Dielectric Subwavelength Gratings Edge Filters.

Jingliang Lin, Ping Tang, Kaihao Chen, Jiancai Xue, Ziming Meng, Jinyun Zhou

Abstract read

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Article in Nanomaterials (Basel, Switzerland), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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6 authors.

Jingliang LinSchool of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou 510006, China.

Ping TangSchool of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou 510006, China.ORCID 0000-0003-0694-1613

Kaihao ChenSchool of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou 510006, China.

Jiancai XueSchool of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou 510006, China.ORCID 0000-0001-8818-6089

Ziming MengSchool of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou 510006, China.

Jinyun ZhouSchool of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou 510006, China.

Funding

Key-Area Research and Development Program of Guangdong Province 2020B090924001National Natural Science Foundation of China 62105071National Natural Science Foundation of China 62131018

6 · The paper itself

Abstract

Accurate real-time temperature measurement under extreme thermal-pressure conditions remains challenging in aerospace. Sapphire fiber Bragg gratings (FBGs), exhibiting temperature measurement capabilities up to 1900 °C, demonstrate suitability for such extreme environments. However, the development of a high-performance demodulation system capable of processing sapphire FBG signals over wide spectral ranges at elevated speeds remains a technical challenge. This study presents a real-time FBG signal demodulation system that incorporates an all-dielectric subwavelength grating edge filter. The designed grating, comprising a TiO

Indexed as

all-dielectric subwavelength gratinghigh-temperature sensingMie resonance modessapphire fiber Bragg gratingswide-range demodulation

Identifiers

PMID40214581

DOI10.3390/nano15070536

PMCPMC11990339

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