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中文摘要：
提出了一种实时的可调谐光滤波器（TOF）非线性标定方法。基于可调谐光滤波器的输出特性构建了可调谐光滤波器非线性实时标定系统。采用最小二乘多项式拟合法建立了可调谐光滤波器波长-电压响应曲线,用于描述光滤波器的非线性特性。采用带波长阻隔的F-P标准具测试了可调谐光滤波器的波长随机误差,结果表明采用参考波长值可使可调谐光滤波器波长随机误差降低37%~95%。将这种实时标定方法应用于气压传感系统,可明显提高传感器的波长定位精度,降低系统误差,实现高灵敏度气压传感。
英文摘要：
A real-time calibration method is proposed for investigation of tunable optical filter（TOF） nonlinearity.Based on the transmission characteristic of TOF,nonlinearity real-time calibration system is established.Using least mean square algorithm,the relationship between wavelength and voltage of the TOF can be obtained.Thus the nonlinearity of the TOF can be described.The wavelength random error of the TOF is measured by using wavelength blocked F-P etalons.The result shows that wavelength random error of the TOF can be reduced by 37%～95% with reference wavelength.Combined with the method,the wavelength precision in gas pressure sensing system is obviously improved in position accuracy,system error and high sensitivity.
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