激光与光电子学进展, 2017, 54 (4): 042301, 网络出版: 2017-04-19
基于光纤光栅传感系统的光纤法布里-珀罗滤波器热致非线性研究 
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Investigation on Thermo-Induced Nonlinearity of Fiber Fabry-Perot Filter by Using Optical Fiber Sensing System
光学器件 可调谐法布里-珀罗滤波器 光纤布拉格光栅 压电陶瓷 热效应 非线性 多项式拟合 optical devices tunable Fabry-Perot filter fiber Bragg grating piezo-electrical transducer thermal effect nonlinearity polynomial fitting
摘要
研究和评估了基于光纤布拉格光栅(FBG)传感系统的压电陶瓷(PZT)驱动的光纤法布里-珀罗(FFP)滤波器的热致非线性，采用多项式拟合法减小FFP滤波器的热致非线性误差。在FFP滤波器所处环境温度变化超过15 ℃的情况下，采用大于等于4阶的多项式拟合和参考光栅的方法，可使FFP滤波器热致应变误差从750 με减小到15 με，标准差保持在10 με以下。实验结果显示，当PZT驱动的FFP滤波器的温度变化范围较大时，其热效应不是简单地保持不变或呈线性。
Abstract
The thermo-induced nonlinearity of piezo-electrical transducer (PZT) driven fiber Fabry-Perot (FFP) filter using fiber Bragg grating (FBG) sensing system is investigated and evaluated. Polynomial fitting is adopted to model the nonlinearity. Under 4th or higher order polynomial fitting and a reference FBG, the thermo-induced strain error is reduced from 750 με to 15 με and the standard deviation is kept below 10 με while PZT driven FFP experiences over 15 ℃ temperature change. It is observed that thermal effect on PZT driven FFP is not simply invariable or linear in a wide temperature range.
盛文娟, 张慧, 杨宁, 刘洋, 彭刚定. 基于光纤光栅传感系统的光纤法布里-珀罗滤波器热致非线性研究[J]. 激光与光电子学进展, 2017, 54(4): 042301. Sheng Wenjuan, Zhang Hui, Yang Ning, Liu Yang, Peng Gangding. Investigation on Thermo-Induced Nonlinearity of Fiber Fabry-Perot Filter by Using Optical Fiber Sensing System[J]. Laser & Optoelectronics Progress, 2017, 54(4): 042301.
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