摘要
光纤布拉格光栅（FBG）中心反射波长随温度变化会发生漂移，影响光纤激光器输出波长的稳定性和光纤光栅传感器精度。为消除光纤光栅中心波长温漂特性，设计了一种新型光纤光栅温度补偿装置，详细阐述了其工作原理，并理论推导了点胶位置的计算公式。这种新结构易调整光纤光栅粘结位置，从而可调整光纤光栅温度补偿有效长度。为验证结构设计和理论分析的正确性，搭建了实验系统，并对封装前后光纤光栅中心反射波长温度漂移率进行了测试。测试结果表明，在一30～70℃温度范围内，封装前光纤光栅中心反射波长的温度漂移率为0．0095nm／℃，封装后中心反射波长温度漂移率仅为0．0002nm／℃，温度稳定性提高了约40倍。
The fiber Bragg grating （FBG） center wavelength shifts change with the temperature, which will affect the wavelength stabilization of fiber laser. An innovative temperature-compensate package for FBG was introduced to compensate temperature changes. The principle of the package was introduced in detail, and the bonding positon of FBG was deduced in this paper. Using this new package, the bonding position of FBG could be adjusted, so that the effective length of the temperature-compensated of the FBG could be adjusted easily. A system of data aequisition was established. With and without the new package, the relationships between the reflection wavelength of FBG and temperature were tested. In the range of -30~ 70 ℃, the sensitivity of the Bragg wavelength to the temperature reaches 0. 0002 nm/℃ from 0. 0095 nm/℃ , which is reduced more than 40 times.
出处
《中国激光》
EI
CAS
CSCD
北大核心
2008年第12期1959-1961,共3页
Chinese Journal of Lasers
关键词
光栅
光纤布拉格光栅
温度补偿
结构封装
光纤
gratings
fiber Bragg grating
temperature compensations
paekaging structure
fiber
