Department of Electrical Engineering, Feng-Chia University, Taichung 407102, Taiwan.
Department of Optical Science, Tokushima University, Tokushima 770-0855, Japan.
Sensors (Basel). 2023 Apr 12;23(8):3936. doi: 10.3390/s23083936.
In this article, we theoretically designed and simulated a silicon core fiber for the simultaneous detection of temperature and refractive index. We first discussed the parameters of the silicon core fiber for near single-mode operation. Second, we designed and simulated a silicon core-based fiber Bragg grating and applied it for simultaneous sensing of temperature and environmental refractive index. The sensitivities for the temperature and refractive index were 80.5 pm/°C and 208.76 dB/RIU, respectively, within a temperature range of 0 to 50 °C and a refractive index range of 1.0 to 1.4. The proposed fiber sensor head can provide a method with simple structure and high sensitivity for various sensing targets.
在本文中，我们理论设计和模拟了一种用于同时检测温度和折射率的硅芯光纤。我们首先讨论了近单模运行的硅芯光纤的参数。其次，设计并模拟了基于硅芯的光纤布拉格光栅，并将其应用于同时检测温度和环境折射率。在 0 到 50°C 的温度范围和 1.0 到 1.4 的折射率范围内，温度和折射率的灵敏度分别为 80.5 pm/°C 和 208.76 dB/RIU。所提出的光纤传感器探头可为各种传感目标提供结构简单、灵敏度高的方法。
