文档介绍：河北大学
硕士学位论文

姓名:耿一璠
申请学位级别:硕士
专业:光学
指导教师:苏红新
2011-05
摘要
摘要
铒镱共掺双包层光纤激光器是较传统光纤激光器更为优秀的光源,在微米波段
通信系统中有着广泛的应用前景。本文从理论和实验两方面对铒镱共掺双包层光纤激光
器进行研究,主要包括以下几点研究内容:
DBR 结构的铒镱共掺光纤激光器进行理论研究。根据速率方程组和功率
传输方程组建立基于 DBR 结构的铒镱共掺光纤激光器的理论模型。使用 MATLAB 软件
和龙格-库塔算法对铒镱共掺光纤激光器进行数值模拟,讨论了泵浦功率、铒镱共掺光
纤长度和输出腔镜反射率与输出激光功率的关系。
MOPA 结构的铒镱共掺双包层光纤激光器进行理论研究。模拟了泵浦功
率、信号功率和铒镱共掺光纤长度与 MOPA 结构中的铒镱共掺光纤放大器增益及噪声
系数的关系,讨论了泵浦功率、信号功率、铒镱共掺光纤长度与激光器输出功率的关系。
DBR 结构的铒镱共掺光纤激光器的功率特性、光谱特性及时域
特性。在最优化参数条件下,激光器最高输出功率为 ,中心波长 ,斜率
效率 %,光-光转换率 %,3dB 线宽约为。
MOPA 结构的铒镱共掺双包层光纤激光器的功率特性和光谱特
性。激光器的最高输出功率为 ,中心波长。铒镱共掺光纤放大器的最高
增益。

关键词双包层光纤铒镱共掺光纤激光器分布反射(DBR)
主振荡-光放大(MOPA)
I
Abstract
Abstract
Er3+/Yb3+ codoped double-clad fiber lasers are more excellent photon sources than
conventional fiber lasers, and they have very wide promising applications in modern
communication system operating at the band. In this dissertation, the theoretical and
experimental investigations of Er3+/Yb3+ codoped double-clad fiber lasers are presented. The
main subjects are as following:
1. Theoretical studies on Er3+/Yb3+ codoped double-clad fiber lasers in DBR
configurations have been presented. Theoretical models of Er3+/Yb3+ codoped double-clad
fiber lasers in DBR configurations are developed based on rate equations and power
propagation equations. The characteristics of Er3+/Yb3+ codoped double-clad fiber lasers in
DBR configurations are numerically studied using Rounge-Kutta method with MATLAB. The
relationship between the output characteristics of the fiber laser and the parameters which
include the pump power, the reflectivity of the output mirror, and the length of Er3+/Yb3+
codoped double-clad fiber, are discussed.
2. Theoretical study on Er3+/Yb3+ codoped double-clad fiber lasers in MOPA
configurations has been presented. The characteristics of Er3+/Yb3+ codope