摘要
用COMSOL对十九芯光纤的各个模场进行仿真,发现同相位超模的远场呈现准高斯分布,其发散角最小,具有最好的光束质量。并通过分析各个模式的光束质量因子M2和桶中功率PIB两个参数,再次证明十九芯光纤的同相位模式具有最好的光束质量。
The mode field distributions of 19-core optical fiber are simulated by using COMSOL software. It isfound that far field with in-phase mode presents quasi-Gauss distribution, which has small divergence angle and thebest beam quality. In-phase mode with the best beam quality is proved through analyzing beam quality factor M2 and power-in-bucket（PIB）.
出处
《光电技术应用》
2016年第4期18-21,共4页
Electro-Optic Technology Application
关键词
十九芯光纤
光束质量
同相位模式
桶中功率
M2
19-core optical fiber
beam quality
in-phase mode
power-in-bucket（PIB）
M2
