设计了一种全光纤传感测试系统，采用长周期光纤光栅作为边带滤波器，对光纤布拉格光栅的传感信息进行解调，结合高信噪比的光电测量系统，传感测量的波长检测灵敏度为1. 94 dB／nm，波长测量分辨率可达0．05 nm．%Design a kind of all-fiber sensing interrogation system, by using long-period fiber grating as edge filter to interrogate the sensing signal of the FBG sensor. The wavelength sen sitivity and wavelength resolution of the sensing measurement is 1.94 dB/nm and 0.05 nm,due to the measurement system with high signal-noise ratio.
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