选择性填充的光子晶体光纤传感特性研究

Study on the fiber sensing properties of selectively filled photonic crystal

针对填充时利用不同填充结构材料对光子晶体光纤(photonic crystal fiber,FCF)传感特性的影响进行了研究,通过建立理论模型,利用有限元模拟对填充后的FCF的温度特性进行了分析。研究表明,填充折射率匹配液后,光纤传感器的温度灵敏度明显增大,对于相同的填充结构,填充占空比越大,输入波长越长,传感器的温度灵敏度越高。

For use when filling effect of different filling materials of construction for the photonic crystal fiber sensing characteristics were studied, by establishing a theoretical model, using the finite element simulation of the temperature characteristics of photonic crystal fibers were analyzed after filling. Research shows that the index matching fluid filled, temperature sensitivity of the optical fiber sensor is increased significantly, the same structure is filled, filling the duty cycle, the longer the input wavelength, the higher the temperature sensitivity of the sensor.