激光与光电子学进展, 2016, 53 (12): 120604, 网络出版: 2016-12-14
端面反射引起的光纤光栅传感阵列的串扰分析
Analysis of Crosstalk in Fiber Grating Sensor Array Caused by Fiber-End Reflection
光纤光学 光纤光栅传感阵列 端面反射抑制 串扰 fiber optics fiber grating sensor array fiber-end reflection suppression crosstalk
摘要
对光纤端面反射引起的光纤光栅阵列的信号串扰进行了理论分析和计算, 并通过实验测试了端面反射引起的传感阵列阵元的信号串扰值。根据阵列信号串扰产生的机理提出了光纤端面反射的抑制方法, 通过实验对该方法进行了验证。对光纤端面反射进行抑制后, 实验得到阵列端面反射引起的串扰小于-70 dB, 可满足光纤光栅传感阵列的实际使用需求。
Abstract
Signal crosstalk of the fiber grating array induced by fiber-end reflection is calculated and analyzed theoretically. The signal crosstalk value of the sensor array element caused by the end reflection is tested by experiment. According to the mechanism of the signal crosstalk, the suppression method of the fiber-end reflection is proposed, and it is verified by experiment. After suppression of the fiber-end reflection, the crosstalk value is less than -70 dB due to the fiber-end reflection, which can meet the requirement of actual use of the fiber grating sensor array.
张自丽, 陈小军, 叶博, 葛辉良. 端面反射引起的光纤光栅传感阵列的串扰分析[J]. 激光与光电子学进展, 2016, 53(12): 120604. Zhang Zili, Chen Xiaojun, Ye Bo, Ge Huiliang. Analysis of Crosstalk in Fiber Grating Sensor Array Caused by Fiber-End Reflection[J]. Laser & Optoelectronics Progress, 2016, 53(12): 120604.