一种简化单模光纤远近场关系的新方法  

A New Method for Simplifying the Transform between the Far-Field and Near-Field of Single Mode Fiber

作　　者：刘建星[1] 张爽斌[1] 

机构地区：[1]南京邮电学院

出　　处：《通信学报》1990年第1期29-35,51,共8页Journal on Communications

摘　　要：本文给出了一种新的拟合单模光纤场分布的函数——高斯偶幂级数。计算机模拟及实验结果表明,本方法具有较高的精度,且计算省时,函数形式简单、汉克变换易于进行,为单模光纤远近场的简化提供了一条新的途径,对实际场分布测量具有较大的帮助。A new function——Gaussian-even-law series——is derived for fitting the field pattern of thesingle mode fiber. The results of the computer simulation and the experiment show that the function is simple in the form, easier for Hankel transform, saving time in calculation and high precision of the results It is great helpful for ths measurement of the practice field pattern, and it gives us a new method for simplifying the relationship between the far-field and the near-field of the single mode fiber.

关 键 词：光纤传输 远近场 分布函数 

分 类 号：TN818[电子电信—信息与通信工程]