机构地区: 暨南大学理工学院电子工程系
出 处: 《光电子.激光》 2003年第4期349-351,共3页
摘 要: 分析了通过施加应变补偿光纤布拉格光栅(FBG)中心波长随温度漂移的原理,给出了一种新型的无源温度补偿的方法和相应的实验结果。该方法采用了两种不同热膨胀系数的金属,对光栅先施加预应变。在0~60℃范围内,中心波长仅偏移了0.02nm。 The excursion mechanism of passive temperature-compensating for Bragg wavelength by applying strain was analyzed and a kind of new passive temperature-compensating package was proposed. The grating was mounted under tension in a package comprising two metal material with different thermal-expansion coefficients. A fiber grating with the package exhibits a variation in Bragg wavelength of 0.02 nm over 0°C-60°C temperature range.
关 键 词: 光纤布拉格光栅 无源温度补偿 热膨胀系数 应变 中心波长
领 域: [电子电信]