锥形光纤的调制特性研究

将通信光纤的末端拉制成锥形能实现光纤之间的耦合,在锥形光纤耦合系统中,载波(被信号所调制的光波-光脉冲)在经过锥形光纤耦合后(连接与分束)其脉冲变化特性对锥形光纤通讯系统是十分重要的。在实验上检测了锥形光纤中光脉冲的调制特性,并从理论上引入脉冲归一化振幅,讨论色散和非线性效应对脉冲的影响,得出光脉冲在经过锥形光纤耦合传输后其形状保持不变的结论。

Study on modulated properties of tapered fiber

The fiber tapered area can be got though melting and pulling the end of a optical fiber and fiber coupling can be realized.In tapered fiber system,the modulated properties of optical pulse are important to the system of information technology.In this paper,the modulated properties of optical pulse are tested in our experiments,the dispersion and the effects of non-linear on pulse have been discussed by introducing normalization amplitude of pulse.The conclusion can be draw that the shape of the pulse after tapered fiber coupling will be constant.