拉丝张力对单模光纤截止波长和模场直径的影响  

EFFECTS OF FIBER DRAWING TENSION ON CUTOFF WAVELENGTH AND MFD OF SINGLE MODE FIBERS

作　　者：王中伟[1] 

机构地区：[1]东南大学电子工程系,南京210000

出　　处：《玻璃纤维》2005年第5期7-10,共4页Fiber Glass

摘　　要：本文介绍了单模光纤截止波长的理论公式,分析和探讨了拉丝张力这一工艺参数与单模光纤截止波长、模场直径之间的关系,并运用数值分析的方法建立了截止波长和模场直径的关系式,最后指出了在实际生产中,如何通过改变拉丝张力而使得截止波长在合格范围内或更加趋于合理。This paper presents the theoretical formula for obtaining the cutoff wavelength of single mode fibers, investigates the relation of the fiber darwing tension with the cutoff wavelength and the mode field diameter （MFD） of the fibers and establishes relational expressions for cutoff wavelenght and MFD by numerical analysis. Finally, the paper shows how to confine the cutoff wavelength in an acceptable range or make it more reasonable by changing the drawing tension in actual production.

关 键 词：拉丝工艺 拉丝张力 截止波长 模场直径 截止波长 模场直径 单模光纤 拉丝张力 理论公式 工艺参数 数值分析 关系式 

分 类 号：TN818[电子电信—信息与通信工程] TN253