Simultaneous Measurement of High Refractive Index and Temperature Based on SSRS-FBG

Autor: Mohd Haniff Ibrahim, Muhammad Yusof Mohd Noor, Mohd Rashidi Salim, Ahmad Fauzi Othman, Siti Mahfuza Saimon, Mohd Hafizi Ahmad, Nor Hafizah Ngajikin, Asrul Izam Azmi, Ahmad Sharmi Abdullah
Rok vydání: 2021
Předmět:
Zdroj: IEEE Photonics Technology Letters. 33:715-718
ISSN: 1941-0174
1041-1135
DOI: 10.1109/lpt.2021.3088849
Popis: In this study, a novel and simple optical fiber sensor is proposed, simulated, and experimentally demonstrated for simultaneous measurement of high refractive index (RI) and temperature. The sensor consists of a section of single-mode-silica rod-single-mode (SSRS) fiber structure cascaded to fiber Bragg grating (FBG) (SSRS-FBG). The simultaneous measurement of high RI and temperature was realized in this study by monitoring the output power level and wavelength shift of the SSRS-FBG single dip transmission spectrum corresponding to different surrounding high RI and ambient temperature values. The experimental results showed that the cascaded sensor had a sensitivity of 108.07 dBm/RIU for high RI ranging at 1.45-1.531, while the temperature sensitivity was 9.31 pm/°C from 35 °C to 85 °C. This sensor is most suitable for high RI applications, such as for monitoring oil quality stored in terminal and power transformers.
Databáze: OpenAIRE