设计两种温度分离和温度补偿方案来解决光纤Bragg光栅对温度、应变交叉敏感的问题,两种方案都采用Bragg光栅与长周期光栅相结合的方式,利用长周期光栅对温度具有高灵敏度的特性,且都避免在同一光纤、同一位置处写入两种光栅技术难,要求高的问题,并对两种方案的优点及不足之处进行分析说明。 Two temperature separation and temperature compensation schemes are designed to solve the problem of fiber Bragg grating cross-sensitivity to temperature and strain. Both schemes adopt a combination of Bragg grating and long-period grating. The long-period grating has high sensitivity to temperature , And both avoid the same optical fiber, the same position to write the two raster technology is difficult, demanding problems, and the advantages of both programs and inadequacies analyzed.