摘要
基于耦合模理论对微管谐振腔结构进行了分析,研究了微管谐振腔的回音壁谐振模式(WGM,Whispering Gallery Mode)及其电磁场分布,在此基础上推导了微径光纤与薄壁微管耦合的相位匹配条件。利用湿法腐蚀和熔融拉锥的方式分别制备了实验所需的微径光纤与薄壁微管,通过耦合实验在薄壁微管中激发出WGM模式,通过改变光纤与微管的参数进行比对实验,比较光纤与微管耦合效率的变化,实验结果表明,特定耦合参数下的高耦合效率验证了相位匹配条件。
Analyse the structure of the microcapillary resonator based on coupled-mode theory,study the Whispering Gallery Mode( WGM) and the distribution of the electromagnetic field,then derive the phase matching conditions between the fiber and the microcapillary. Prepare the fiber and microcapillary through etching and fused biconical taping,then excite the WGM in the coupling experiment. Compare the Coupling efficiency while vary the diameter of the fiber and the microcapillary,the data is consistent with the theoretical analysis.
出处
《激光杂志》
北大核心
2015年第10期80-83,共4页
Laser Journal
