Jing Ning, Teng Chuanxin, Zhao Xiaowei, Zheng Jie
Appl Opt. 2015 Mar 10;54(8):1890-3. doi: 10.1364/AO.54.001890.
We investigate the temperature dependence of a refractive index (RI) sensor based on a macrobending micro-plastic optical fiber (m-POF) both theoretically and experimentally. The performance of the RI sensor at different temperatures (10°C-70°C) is measured and simulated over an RI range from 1.33 to 1.45. It is found that the temperature dependent bending loss and RI measurement deviation monotonically change with temperature, and the RI deviation has a higher gradient with temperature variation for a higher measured RI. Because of the linear trend of temperature dependence of the sensor, it is feasible to correct for changes in ambient temperature.
我们从理论和实验两方面研究了基于宏弯微塑料光纤（m-POF）的折射率（RI）传感器的温度依赖性。在1.33至1.45的RI范围内，测量并模拟了RI传感器在不同温度（10°C - 70°C）下的性能。结果发现，与温度相关的弯曲损耗和RI测量偏差随温度单调变化，并且对于较高的测量RI，RI偏差随温度变化具有更高的梯度。由于传感器的温度依赖性呈线性趋势，因此校正环境温度的变化是可行的。
