熔锥型宽带耦合器的研制

详细信息

Development of fused biconical taper wide band coupler

1.
Academy of Physics and Electronic Engineering,Central University For Nationalities,Beijing 100081,China;
2.
Department of Computer,Hebei Institute of Architecture Civil Engineering,Zhangjiakou 075024,China;
3.
The Army of 63713,PLA,Shanxi 036301,China

摘要: 介绍了全光纤熔融拉锥型3dB宽带耦合器的理论设计，根据理论设计制作了样品。应用耦合模理论分析了全光纤非对称熔融拉锥型耦合器的宽带特性；提出了3dB宽带耦合器的制作方案，在此基础上制作了样品；对样品进行测试，样品带宽大约为300nm(在1300nm～1600nm波长之间)，附加损耗小于0.5dB，完全达到了实用化的要求。
- 无源器件 /
- 宽带耦合器 /
- 熔融拉锥 /
- 耦合模理论
Abstract: 3dB wide band coupler is a passive device widely used in optical fiber communication system, optical fiber sensor, optical fiber measurement technology and signal processing system. A fiber fused biconical taper (FBT) 3dB wide band coupler was designed and some samples were manufactured. The bandwidth characteristics of asymmetric FBT coupler were analyzed by coupledmode equation. The bandwidth of the wide band coupler is about 300nm (between 1300nm and 1600nm), while its excess loss is less than 0.5dB.
- passive device /
- wide band coupler /
- fused biconical taper /
- theory of coupled-mode