阵列波导光栅波长解调系统的温度补偿方法的研究  

Research on the Temperature Compensation Method for the Arrayed Waveguide Grating Wavelength Demodulation System

作　　者：孙金露 苗长云[1] 张诚[1] 刘春影[1] 穆殿伟 曾庆锴[2] 

机构地区：[1]天津工业大学电子与信息工程学院,天津300387 [2]中山大学信息科学与技术学院,广州510006

出　　处：《传感技术学报》2013年第11期1543-1547,共5页Chinese Journal of Sensors and Actuators

基　　金：国家自然科学基金青年科学基金项目(61307094);高等学校博士学科点专项科研基金项目(20101201120001);天津市高等学校科技发展基金项目(20100710)

摘　　要：阵列波导光栅波长解调系统具有结构简单、响应速度快等优点，由于阵列波导光栅的中心波长会受环境温度影响而产生漂移，影响解调精度。在分析了阵列波导光栅波长解调原理的基础上，提出了一种阵列波导光栅波长解调系统的温度补偿方法。该方法利用补偿光栅确定温度补偿系数，实现对阵列波导光栅波长解调系统的温度补偿，消除了温度漂移对解调精度的影响。实验结果表明，在环境温度变化范围为14℃～44℃时，该方法解调误差仅为2pm，较未加入补偿有明显提高，在高精度阵列波导光栅波长解调领域具有很高的应用前景。The arrayed waveguide grating （AWG）wavelength demodulation system has advantages of simple operation and fast response speed, Since the central wavelength of AWG shifts when the ambient temperature changes,the demodulation accuracy may be affected. In this paper, a new type of fiber Bragg grating demodulation system with temperature compensation is proposed on the bases of analysing the AWG-based wavelength demodulation principle. This method confirms the compensation coefficient in real time by adding compensation grating. In this way, temperature compensation for the AWG wavelength demodulation system is realized, and the effect to demodulation accuracy caused by temperature drift can be avoid. On condition that AWG ambient temperature ranges between 14 ℃ and 44 ℃ ,the results indicate that the demodulation accuracy can be obviously improved compared to the situation with no compensation added. The demodulation error is only 2 pro. This demodulation method has fine application prospects in the field of high-precision demodulation.

关 键 词：光纤光栅 阵列波导光栅 温度补偿 补偿光栅 

分 类 号：TN253[电子电信—物理电子学] TN247