基于轴向压缩技术的宽调谐光纤光栅滤波器的研制  

Development of fiber Bragg grating filter based on axial compression technique

作　　者：赵恒磊[1] 冯素娟[1] 王会娟[1] 赵佳生[1] 毛庆和[1] 

机构地区：[1]中国科学院安徽光学精密机械研究所安徽省光子器件与材料重点实验室,安徽合肥230031

出　　处：《量子电子学报》2011年第3期375-379,共5页Chinese Journal of Quantum Electronics

基　　金：安徽省重点实验室建设项目;中科院创新基金(CXJJ-10-M54)资助项目

摘　　要：研制了一种宽调谐光纤光栅滤波器(FBG)。该滤波器通过光纤插芯导引光栅,利用轴向压缩技术,实现了25nm的调谐。调谐过程中,FBG布拉格波长改变量与微位移台调节量呈良好的线性关系,FBG反射率波动小于0.59dB,3dB带宽波动小于0.1nm,装置稳定性较好,布拉格波长在30min内的漂移量小于0.07nm。A compact Bragg grating filter with a widely tuning range was demonstrated. The filter may be continuously tuned in spectral range of 25 nm by applying the axial compression on the fiber Bragg grating （FBG） which is guided with two special ferrules. Experimental results show that, the Bragg wavelength of the FBG changes linearly with the axial compression displacement. Variations of the reflectivity and 3 dB bandwidth of the FBG are respectively less than 0.59 dB and 0.1 nm during the tuning process. The tunable filter is stable and the Bragg wavelength shift in 30 min is less than 0.07 nm.

关 键 词：纤维与波导光学 可调谐光纤光栅 轴向压缩技术 布拉格波长 反射率 

分 类 号：TN252[电子电信—物理电子学]