基于F-P滤波器的光纤光栅解调和标定  

Demodulating and calibrating for fiber Bragg grating based on Fabry-Perot filter

作　　者：柏俊杰[1] 王立新[1] 冉昌艳[1] 陈念军[1] 

机构地区：[1]武汉理工大学光纤传感技术与信息处理教育部重点实验室,湖北武汉430070

出　　处：《传感器与微系统》2006年第3期10-11,14,共3页Transducer and Microsystem Technologies

基　　金：国家"863"计划资助项目(AA313140)

摘　　要：探讨了基于F-P滤波法对光纤光栅波长解调和标定的方法。把信号电压整形为矩形脉冲信号进行解调和标定,用这种方法进行波长解调有很高的精度和稳定性,根据该方法设计的波长解调器已广泛应用于大型多点安全监测工程。最后,给出具体的波长解调和标定的实例,精度可达到±2 pm。Based on an optical fiber Fabry-Perot（F-P） tunable filter,the methods to demodulate and calibrate the wavelength of FBG are discussed. According to the method of turning the voltage signal into rectangle pulse to demodulate and calibrate the wavelength, very high accuracy and stability are attained and a wavelength demodulator that has been used extensively in large-scale multipoint monitor engineering is designed. At last, an example of wavelength demodulation and calibration is given, and accuracy can reach to ± 2 pm.

关 键 词：光纤BRAGG光栅 可调光纤F—P滤波器 解调 标定 

分 类 号：TP212.14[自动化与计算机技术—检测技术与自动化装置]