摘要
渐变光纤的折射率分布规律对其色散特性具有重要影响,而平方率渐变光纤一直被认为具有较好的色散特性,其原因是当光能量被集中在光纤轴线附近时,对应的近轴子午光线可以自聚焦。本文首先推导出平方律渐变光纤中,近轴子午光线的轨迹方程。然后,通过对轨迹方程的深入研究,得出了平方律渐变光纤中的近轴子午光线皆可以自聚焦的结论。
The distributive property of refractive index of graded fiber can make a noteable impact to the dispersion property of the fiber. The square regulation graded index fiber is considered to have fairly good dispersion property because the near axle meridian light in the fiber may focalize automatically. First, this paper deduces the track equation of the near axle meridian light in square regulation graded index fiber. Then studies deeply the track equation and obtains the conclution which all near axle meridian light in square regulation graded index fiber can focalize automatically,
出处
《沈阳航空工业学院学报》
2006年第2期59-60,47,共3页
Journal of Shenyang Institute of Aeronautical Engineering
关键词
平方律渐变光纤
近轴子午光线
自聚焦
square regulation graded index fiber
near axle meridian light
auto - focalization
