Abstract
In this study, a new approach using optical fiber sensor based on a single fiber Bragg grating (FBG) is proposed to overcome the cost and complexity limitations. The reflected frequency of the half-etched region is shifted by utilizing a half-etched uniform FBG as the sensing element. The proposed sensor is evaluated using the refractive index measurement technique, and its validity is demonstrated by subjecting it to temperature variations. A sensitivity of − 524.48 MHz/°C is exhibited by the proposed sensor over a dynamic range of about 25 °C to 70 °C. It is demonstrated that the proposed sensor is highly sensitive, cost-effective, and reduces the complexity of the manufacturing and measurement process. This novel approach has significant potential for applications in various fields, including biomedical sensing, environmental monitoring, and industrial process control.
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Acknowledgements
The authors thank the staff of the Laser and Optoelectronics Engineering Departments, University of Technology, Laser and Optoelectronics Engineering Departments, of Al-Nahrain University and Middle Technical University.
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DAR: Conceptualization, Methodology, Writing-review and editing, Formal analysis and investigation, Writing, and editing. MFA Supervision.
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Resen, D.A., Altemimi, M.F. Cost-effective, high-performance fiber sensor based on uniform FBG for multi-sensing applications. Opt Quant Electron 55, 712 (2023). https://doi.org/10.1007/s11082-023-04952-0
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DOI: https://doi.org/10.1007/s11082-023-04952-0