2023/08/02 by Jessica L. Mount, Mount, Jessica L., Vernon R. Brown +3
Engineering · #ACM-class: F.2.2 #Advanced Fiber Optic Sensors #Applied Physics (physics.app-ph) #FOS: Physical sciences #I.2.7 #I.2.7 ACM-class: F.2.2 #Optics (physics.optics) #Photonic Crystal and Fiber Optics #Photonic and Optical Devices
paper · pdf · doi:10.48550/arxiv.2308.00941
openalex publication_date 2023/08/02 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
In this study, we propose an all-solid cladding dual-core metal fiber (DC-MF) filled with toluene and ethanol for temperature sensing applications. Instead of using air holes in the cladding region, we employ fluorine doped silica glass to form an all-solid cladding. By selectively filling toluene and ethanol into three air holes near the core region, we investigate the temperature sensing characteristics numerically. Simulation results demonstrate that the average sensitivity of the temperature sensing can reach -11.64 and -7.41 nm/C within the temperature ranges of 0 to 70 C and -80 to 0 C, respectively, even with a short DC-MF length of 1.6 mm. The maximum sensitivity in the considered temperature ranges can reach up to -15 and -9 nm/C, respectively. Furthermore, the proposed temperature sensor exhibits insensitivity to hydrostatic pressure.