Design for non-uniformly doped Erbium-doped waveguide amplifiers in the propagation direction

被引：4
|
作者：
Song, Q [1 ]
Song, CL
Li, CR
Li, SF
Li, JY
机构：
[1] Dalian Univ Technol, Dept Phys, Dalian 116024, Peoples R China
[2] Liaoning Normal Univ, Dept Phys, Dalian 116024, Peoples R China
来源：
OPTICS COMMUNICATIONS | 2005年 / 248卷 / 1-3期
基金：
中国国家自然科学基金;
关键词：
EDWA; optical amplifier;
D O I：
10.1016/j.optcom.2004.11.087
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A novel scheme is proposed to improve the gain performance of Erbium-doped waveguide amplifiers (EDWAs) by non-uniformly doping Er+3 ions along the propagating direction. Dependence of gain and pump efficiency on Er concentration is studied through an adaptive method based on the finite element method (FEM). Numerical results suggest that the optimized distribution of Er concentration operated by gain and pump efficiency can improve, in a certain degree, the gain value, i.e., the gain maximum, for a certain limited length. (c) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：1 / 6
页数：6
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