EDFA对基孤子脉冲进行压缩与放大的数值研究

陈海涛; 吴正茂; 范云霞; 姜广东; 夏光琼

激光技术, 2006, 30 (2): 0202, 网络出版: 2010-06-03

EDFA对基孤子脉冲进行压缩与放大的数值研究

Numerical studies on the compression and amplification of the fundamental soliton pulse using erbium-doped fiber amplifier

论文大纲

陈海涛 ¹吴正茂 ¹范云霞 ²姜广东 ¹夏光琼 ^1,*

作者单位

¹ 西南大学物理学院，重庆 400715

² 西南科技大学理学院，绵阳 621002

摘要

从描述光脉冲在掺铒光纤放大器(EDFA)中传输的非线性薛定谔方程出发，对基孤子脉冲在EDFA中的压缩与放大进行了数值研究，并对孤子脉冲在其中的压缩提出优化方案。结果表明，通过合理地选择EDFA的参数，可使无啁啾的基孤子脉冲实现绝热压缩和放大；对具有初始啁啾的基孤子脉冲，压缩过程将不再满足绝热条件；对于正啁啾的基孤子脉冲，可得到较好的压缩与放大；而对于负啁啾的基孤子脉冲，压缩效果却较差。

Abstract

Starting from the nonlinear Schr?dinger equation describing the pulse propagation in erbium-doped fiber amplifier(EDFA),the compression and amplification of fundamental soliton pulse using EDFA are investigated numerically,and the optimum schemes for soliton pulse compression are proposed. The results show that:for the fundamental soliton pulse without the chirp,the pulse can be compressed and amplified adiabatically by selecting appropriate parameters of erbium-doped fibers;for the chirped fundamental soliton pulse,the process of the compression and amplification is not satisfied adiabatical condition;the effective compression and amplification can be obtained for the positive chirped fundamental soliton pulse,but the compression effect for the negative chirped fundamental soliton pulse is poor.

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陈海涛, 吴正茂, 范云霞, 姜广东, 夏光琼. EDFA对基孤子脉冲进行压缩与放大的数值研究[J]. 激光技术, 2006, 30(2): 0202. CHEN Hai-tao, WU Zheng-mao, FAN Yun-xia, JIANG Guang-dong, XIA Guang-qiong. Numerical studies on the compression and amplification of the fundamental soliton pulse using erbium-doped fiber amplifier[J]. Laser Technology, 2006, 30(2): 0202.

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