激光技术2011,Vol.35Issue(2):278-281,4.DOI:10.3969/j.issn.1001-3806.2011.02.037
超短光脉冲通过分布式光纤放大器的传输特性
Propagation characteristics of ultrashort optical pulse passing through distributed fiber amplifiers
周小红 1王黎 1高晓蓉 1王泽勇 1罗斌2
作者信息
- 1. 西南交通大学,物理科学与技术学院,成都,610031
- 2. 西南交通大学,信息科学与技术学院,成都,610031
- 折叠
摘要
Abstract
In order to discuss the propagation and amplification characteristics of ultrashort optical pulse in distributed fiber amplifiers and the influencing factors, its basic propagation equation was established. Taking an ytterbium-doped fiber amplifier as example, the evolution of optical pulse in the amplifier was simulated by means of split-step Fourier transform method. Then the effect of initial chirp and gain dispersion were discussed. The results show that when the optical pulse propagates in a distributed optical fiber amplifier, dispersion and nonlinear effect of the fiber will affect pulse profile and frequency spectrum, and initial chirp also influence the propagation state of optical pulse. For wide-spectrum optical pulse, gain dispersion is equivalent to a loss mechanism, so its influence should be considered. Relevant results have certain reference value to the system design and optimization of optical fiber amplifiers.关键词
光纤光学/传输特性/分步傅里叶变换法/超短光脉冲/分布式光纤放大器Key words
fiber optics/ propagation characteristic/ split-step Fourier transform method/ ultrashort optical pulse/ distributed fiber amplifier分类
信息技术与安全科学引用本文复制引用
周小红,王黎,高晓蓉,王泽勇,罗斌..超短光脉冲通过分布式光纤放大器的传输特性[J].激光技术,2011,35(2):278-281,4.