温度对双芯布拉格光纤光栅二阶偏振模色散影响的研究
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摘要
应用了一种对称结构的双芯光纤,写入对称的光栅,形成双芯布拉格光纤光栅.实验研究其在不同温度下的反射谱线和二阶偏振模色散(PMD)随波长变化曲线,分析了二阶PMD随温度变化的情况.实验表明,二阶PMD随着温度的变化而改变,温度增加两峰中心波长的漂移程度相同,其他因素无明显变化,二阶PMD中心波长峰值随温度增加成线性向长波长方向漂移.研究结果对双芯光纤光栅温度传感的应用提供了一定的指导意义.
A symmetrical structure of twin-core fiber is used to write a symmetrical grating to form a twin-core Fiber Bragg Gratings. The reflection spectrum and the second-order PMD with the wavelength change curves at different temperature are studied experimentally,and the change of the second-order PMD with the temperature is analyzed. The experiment shows that the second-order PMD changes with the temperature change,the temperature increases,the center wavelength of the two peaks shift the same degree,and the other factors have no abvious change. The second-order PMD center wavelength peak increases linearly with temperature towards the direction of long wavelengths. The results provide some certain guiding significance for the application of the twin-core fiber grating temperature sensing.
A symmetrical structure of twin-core fiber is used to write a symmetrical grating to form a twin-core Fiber Bragg Gratings. The reflection spectrum and the second-order PMD with the wavelength change curves at different temperature are studied experimentally,and the change of the second-order PMD with the temperature is analyzed. The experiment shows that the second-order PMD changes with the temperature change,the temperature increases,the center wavelength of the two peaks shift the same degree,and the other factors have no abvious change. The second-order PMD center wavelength peak increases linearly with temperature towards the direction of long wavelengths. The results provide some certain guiding significance for the application of the twin-core fiber grating temperature sensing.
引文
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[2] Liu Zhihai,Wei Yong,et al. Twin-core fiber SPR sensor[J]. Optics Letters,2015,40(12):2826-2829.
[3]王标,庞璐,张伟刚,等.失配型双芯长周期光纤光栅弯曲矢量传感[J].光子学报,2017,46(10):43-48.
[4]张晓晶,武湛君,张博明,等.光纤布拉格光栅温度灵敏性的实验研究[J].光学技术,2005,31(4):497-499.
[5]田春华,励强华,郭炳霞,等.弱双折射光纤布喇格光栅反射偏振对温度响应特性的研究[J].光子学报,2012,41(2):139-143.
[6]乔学光,贾振安,傅海威,等.光纤光栅温度传感理论与实验[J].物理学报,2004(2):494-497.
[7]柴伟.光纤布拉格光栅温度传感技术研究[D].武汉:武汉理工大学. 2004:13-15.
[8]范林勇,赵瑞峰,江微微,等.用于应力传感的双芯光纤马赫-曾德尔干涉仪[J].光电子·激光,2010,21(10):1488-1491.
[9]江微微,赵瑞峰,范林勇,等.基于双芯光纤耦合器的梳状滤波器[J].中国激光,2011,38(5):0505001.
[10]康泽新,孙将,马林,等.基于双芯光纤级联布拉格光纤光栅的温度与应力解耦双测量传感系统[J].光学学报,2015,35(5):90-95.
[11]冯素春,任文华,陈曼雅,等.基于双芯光纤滤波器和非线性偏振旋转效应的多波长光纤激光器[J].中国激光,2014,41(6):141-146.