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Improvement of Temperature Performance of Singlemode-Multimode-Singlemode Fiber Structure
Rongxiang Zhang1, Weiyu Wang1, Jianfei Zhang1
1College of Physics Science and Technology, Hebei University, Baoding 071002, China.
Sensors (Basel, Switzerland)
|November 11, 2022
Summary
A new theoretical model accurately predicts temperature effects on single-mode-multi-mode-single-mode (SMS) fiber sensors. This research optimizes SMS fiber structures for enhanced temperature stability and sensitivity.
Area of Science:
- Optics and Photonics
- Materials Science
- Sensor Technology
Background:
- Single-mode-multi-mode-single-mode (SMS) fiber structures offer unique optical properties.
- Understanding temperature-dependent behavior is crucial for reliable fiber optic sensing applications.
Purpose of the Study:
- To establish a theoretical model for SMS fiber temperature properties.
- To experimentally validate the model and investigate optimization strategies for temperature sensors.
Main Methods:
- Development of a theoretical model for SMS fiber temperature characteristics.
- Fabrication and experimental demonstration of an SMS fiber-based temperature sensor.
- Analysis of thermo-optic, thermal expansion, and absorption effects on sensor performance.
Main Results:
- The model accurately predicts the linear relationship between dip wavelength and temperature.
- Experimental results align well with simulated data.
- Optimization strategies yielded excellent temperature stability (0 pm/°C) or high sensitivity (-441.58 pm/°C).
Conclusions:
- The established theoretical model is effective for analyzing SMS fiber temperature properties.
- SMS fiber sensors can be optimized for specific temperature sensing requirements.
- The study provides insights into tailoring fiber optic sensors for diverse environmental conditions.
