Comparative Study on Temperature Sensing Characteristics of Dual Mechanisms in Hollow Core Fiber
Citation
汪柯红 (Wang Kehong), 余洋 (Yu Yang), 王洋 (Wang Yang), 刘笑尘 (Liu Xiaochen), 赵帅昌 (Zhao Shuaichang), 杨勇 (Yang Yong), 张琦 (Zhang Qi), & 张小贝 (Zhang Xiaobei). (2022). 空芯光纤的双机理温度传感特性比较 [Comparative Study on Temperature Sensing Characteristics of Dual Mechanisms in Hollow Core Fiber]. 光子学报 [Acta Photonica Sinica], 51(11), 1106001. https://doi.org/10.3788/gzxb20225111.1106001
Keywords
- Hollow core fiber (HCF)
- Cascaded fiber device
- Anti-resonant (AR) interference
- Multimode interference (MMI)
- Temperature sensor
- Negative curvature hollow core fiber (NCHCF)
- Single-mode fiber (SMF)
- Graded-index fiber (GIF)
- Dual mechanisms
- Temperature sensing characteristics
- Thermal expansion
- Thermo-optic effect
- Wavelength shift
- Sensitivity
- Detection limit
- Transmission spectrum
- Mode field distribution
- Confinement loss
- Resonant wavelength
Brief
This article presents and experimentally compares a cascaded hollow-core fiber sensor for temperature measurement based on anti-resonant interference (AR) showing higher sensitivity (17.29 pm/℃) compared to multimode interference (MMI) (7.70 pm/℃).
Summary
This article experimentally demonstrates and compares a cascaded hollow-core fiber temperature sensor utilizing anti-resonant interference (AR) which exhibits a significantly higher temperature sensitivity (17.29 pm/℃) than multimode interference (MMI) (7.70 pm/℃). The AR mechanism is shown to be more suitable for precise temperature sensing with this device.
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