基于F-P温控标准具的高稳定性FBG波长解调系统（英文）

发布时间：2018-01-20 06:39

  本文关键词： FBG波长解调 波长扫描激光器 F-P标准具　出处：《红外与激光工程》2017年01期 　论文类型：期刊论文

【摘要】：光纤布拉格光栅(FBG)的波长随外界温度和压力变化。检测出波长的变化,就可以计算出外界的温度和压力。文章提出了一个基于F-P温控标准具的高稳定性光纤布拉格光栅(FBG)波长解调系统,讨论分析了FBG波长解调系统的原理及高稳定性的原因。在这个系统中,带温控模块的F-P标准具用来进行实时波长校准。F-P标准具的波长数值可查询得到,由线性插值算法可以得出光纤光栅的波长值。温控模块可以保证标准具在±0.01℃的范围内变化,因此标准具波长值可以认为是定值。最后通过测量水浴槽中光纤光栅的波长变化测试系统稳定性,并与MOI公司解调仪sm125在稳定性方面做了对比。实验结果表明20 h内系统的长期稳定性可达到±0.15 pm,而sm125解调仪是±3 pm。
[Abstract]:The wavelength of fiber Bragg grating (FBG) varies with the external temperature and pressure. The external temperature and pressure can be calculated. A wavelength demodulation system for fiber Bragg grating (FBG) with high stability based on F-P temperature control standard is presented in this paper. The principle of FBG wavelength demodulation system and the reasons for its high stability are discussed. F-P standard device with temperature control module is used for real-time wavelength calibration. The wavelength value of F-P standard device can be obtained by querying. The wavelength of fiber Bragg grating can be obtained by linear interpolation algorithm. The temperature control module can ensure that the standard varies in the range of 卤0.01 鈩，

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