High-Temperature Fiber Optic Sensor Using a Grating on an Angled Fiber Tip
High-Temperature Fiber Optic Sensor Using a Grating on an Angled Fiber Tip
复制标题
在有角度的光纤尖端上使用光栅的高温光纤传感器
DOI：
10.1143/jjap.41.1431
复制
发表时间：
2002
影响因子：
1.5
通讯作者：
Sok
中科院分区：
文献类型：
--
作者：
Sok
为了在高温范围内获得更稳定的光纤温度传感器，在45°角光纤尖端采用光刻和干刻蚀的方法制作光栅，使一部分入射光衍射回光纤轴，并干扰从角度光纤尖端完全反射的光。研究了s偏振和p偏振输入光束在室温~ 1100℃范围内的性能，并用参数估计技术对其进行了分析。结果表明，信号强度的变化取决于输入偏振态，热光系数和热膨胀系数的相位变化必须视为温度的线性函数。
In order to achieve a more stable fiber-optic temperature sensor in a high temperature range, a grating was produced by lithography and dry etching on the 45° angled fiber tip to diffract a portion of the incident light back to the fiber axis and to interfere with the light which is totally reflected from the angled fiber tip. The performance was investigated in the range of the room temperature to 1100°C for s- and p-polarized input beams and then analyzed by the parameter estimation technique. The result shows that the variation of signal intensity is dependent on the input polarization state and that the phase change from the thermo-optic and thermal expansion coefficients must be treated as a linear function of temperature.