Yu Yongqin, Li Xuejin, Hong Xueming, Deng Yuanlong, Song Kuiyan, Geng Youfu, Wei Huifeng, Tong Weijun
College of Physics Science and Technology, Shenzhen University, 518060, PR China.
Opt Express. 2010 Jul 19;18(15):15383-8. doi: 10.1364/OE.18.015383.
We introduce a novel photonic crystal fiber (PCF) temperature sensor that is based on intensity modulation and liquid ethanol filling of air holes with index-guiding PCF. The mode field, the effective refractive index and the confinement loss of PCF were all found to become highly temperature-dependent when the thermo-optic coefficient of the liquid ethanol used is higher than that of silicon dioxide and this temperature dependence is an increasing function of the d/Lambda ratio and the input wavelength. All the experiments and simulations are discussed in this paper and the temperature sensitivity of transmission power was experimentally determined to be 0.315 dB/ degrees C for a 10-cm long PCF.
我们介绍了一种新型的光子晶体光纤（PCF）温度传感器，它基于强度调制以及用折射率引导型光子晶体光纤的气孔填充液体乙醇。当所用液体乙醇的热光系数高于二氧化硅的热光系数时，发现光子晶体光纤的模场、有效折射率和限制损耗都变得高度依赖于温度，并且这种温度依赖性是d/λ比和输入波长的递增函数。本文讨论了所有实验和模拟，并通过实验确定了对于一根10厘米长的光子晶体光纤，传输功率的温度灵敏度为0.315 dB/℃。
