Research on effects of active fiber length and dopant concentration on 976-nm Yb-doped fiber amplifiers  

作　　者：王睿星 曹涧秋 刘莹 郭少锋 陈金宝 

机构地区：[1]College of Opto-Electronic Science and Engineering, National University of Defense Technology, Changsha 410073, China

出　　处：《Chinese Optics Letters》2013年第14期26-29,共4页中国光学快报（英文版）

摘　　要：In this letter, the theoretical model and rate equations of Ytterbium-doped double-clad fiber amplifiers are introduced. The output performance of fiber amplifiers is analyzed through numerical simulations considering three main factors： active fiber length, pump power, and dopant concentration. It is found that the output signal power experiences a stable growth and then decreases rapidly as the active fiber length becomes longer. It is also revealed that the dopant concentration shows similar effects as active fiber length on the output signal power of fiber amplifiers.In this letter, the theoretical model and rate equations of Ytterbium-doped double-clad fiber amplifiers are introduced. The output performance of fiber amplifiers is analyzed through numerical simulations considering three main factors： active fiber length, pump power, and dopant concentration. It is found that the output signal power experiences a stable growth and then decreases rapidly as the active fiber length becomes longer. It is also revealed that the dopant concentration shows similar effects as active fiber length on the output signal power of fiber amplifiers.

分 类 号：TN253[电子电信—物理电子学] TN818