Numerical calculation of temperature sensing in seawater based on microfibre resonator by intensity-variation scheme
Numerical calculation of temperature sensing in seawater based on microfibre resonator by intensity-variation scheme
复制标题
基于微纤维谐振器的强度变化方案海水温度传感数值计算
DOI：
10.2971/jeos.2014.14047
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发表时间：
2014-10
影响因子：
1.5
通讯作者：
Wang, S. S.
中科院分区：
文献类型：
--
作者：
Yang, H. J.;Wang, J.;Wang, S. S.
提出了一种基于微纤维谐振器的变强度海水温度传感检测方法，该方法具有灵敏度高、检测下限低等优点。研究了探测波长、光纤直径和环径对灵敏度的影响。结果表明，探测波长主要受吸收损耗的影响。吸收损耗越大，灵敏度越低，这与谐振式波长移位方案有很大不同。随着环径的增大，弯曲损耗减小，Q因子增大，灵敏度增加。此外，可能存在使灵敏度最大化的最佳纤维直径。通过调节系统参数，可以将灵敏度从0.0784NI/OC调到13.79NI/OC(NI是归一化强度的缩写)。相应地，动态范围从11.77oC到0.08oC变化。此外，还研究了检测下限对波长、光纤直径和环径的依赖关系，这与灵敏度的关系相反。对不同温度下的灵敏度和检出限的关系进行了研究，结果表明，高灵敏度和低检出限与高温有关，不同温度下高灵敏度和低检出限的最佳纤维直径是相同的。该方法的最低检测下限为10^-7oC级，比传统方法低4个数量级。研究结果有助于寻找温度传感器的最佳参数，为组装用于海水传感和检测的微光器件提供有益的参考。
A seawater temperature sensing and detection method based on microfibre resonator (MR) by intensity-variation scheme is proposed, which has the advantages of high sensitivity and low detection limit. The dependences of sensitivity on probing wavelength, fibre diametre and ring diametre are studied. Results show that probing wavelength influences the sensitivity by the absorption loss predominantly. Larger absorption loss results in lower sensitivity, which is much different with resonant-wavelength-shift scheme. And sensitivity increases with the increasing ring diametre due to the decreasing bending loss and increasing Q-factor. In addition, there may exist an optimal fibre diametre, with which the sensitivity is maximized. By tuning the parameters of system, sensitivity can be tuned from 0.0784NI/oC to 13.79 NI/oC (NI is the abbreviation of normalized intensity). Correspondingly, dynamic range changes from 11.77oC to 0.08oC. Additionally, the dependences of detection limit on wavelength, fibre diametre, and ring diametre are also investigated, which are opposite to that of sensitivity. For different temperatures, the dependences of sensitivity and detection limit at some typical temperatures are studied, which shows that high sensitivity and low detection limit are related to high temperature, and the optimal fibre diametres for high sensitivity and low detection limit are the same at different temperatures. The lowest detection limit is estimated to be 10^ -7 oC level, which is four orders of magnitude smaller than that of the traditional method. Results shown here are beneficial to find the optimal parameters for the temperature sensors, and offer helpful references for assembling micro-photonics device used in seawater sensing and detection.
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影响因子：
1.3
作者：
M. J. Adams
通讯作者：
M. J. Adams
DOI：
10.1887/0750306076/b1388v1c8
发表时间：
1983-11
期刊：
Handbook of Laser Technology and Applications
影响因子：
--
作者：
G. Stewart
通讯作者：
G. Stewart
影响因子：
3.8
作者：
Tong, LM;Lou, JY;Mazur, E
通讯作者：
Mazur, E
影响因子：
4.6
作者：
Muhammad, M. Z.;Jasim, A. A.;Harun, S. W.
通讯作者：
Harun, S. W.
用于化学气体传感的混合石墨烯-微纤维波导
DOI：
10.1109/jstqe.2013.2263117
发表时间：
2014-01-01
影响因子：
4.9
作者：
Wu, Yu;Yao, Bai-Cheng;Chen, Yuanfu
通讯作者：
Chen, Yuanfu