摘要
本文叙述了利用液芯光纤技术获得最佳自发拉曼光谱的方法和条件。用70mW倍频矾酸钇半导体泵浦连续激光器为泵浦光源,获得了高强度的苯自发拉曼光谱。用测量拉曼信号强度的方法,计算出光纤衰减系数α,从而获得了最大拉曼光谱所对应的最佳光纤长度。本文以倍频矾酸钇半导体泵浦连续激光器为光源,用LRS-Ⅱ型激光拉曼/荧光光谱仪得到了丰富的苯的拉曼光谱,比用普通方法获得的拉曼光谱强度增高两个数量级。实验结果与理论计算基本符合。
The method and condition of obtaining optimal raman spectra by means of liquid - core optical fiber are described. Spectral intensity benzol spontareous Raman spectra use the method measuring the Raman sigral intensity, calavlate at the mudulus dacay of fibre with the pump light source.
出处
《长春理工大学学报(自然科学版)》
2007年第2期106-108,共3页
Journal of Changchun University of Science and Technology(Natural Science Edition)
关键词
液芯光纤
拉曼光谱
放大
liquid- core optical fiber
Raman spectra
amplification