首页 | 本学科首页   官方微博 | 高级检索  
     

半导体光放大器亚皮秒量级超快动态特性的研究
引用本文:蒋中,张新亮,黄德修. 半导体光放大器亚皮秒量级超快动态特性的研究[J]. 物理学报, 2006, 55(9): 4713-4719
作者姓名:蒋中  张新亮  黄德修
作者单位:华中科技大学武汉光电国家实验室(筹)和光电子科学与工程学院,武汉 430074
基金项目:国家自然科学基金;教育部跨世纪优秀人才培养计划
摘    要:通过考虑脉冲频谱的增益色散,提出了一个分析亚皮秒光脉冲在半导体光放大器(SOA)中传输的新思路.分别对超快光脉冲在时域和频域内进行离散化,建立了一个更为合理的传输数值模型.基于该模型,观察到了脉冲频谱的明显漂移,并探讨了漂移量与脉冲载波波长、脉冲能量、脉冲宽度、SOA长度和注入电流等外部条件之间的关系,从理论上解释了文献没有证实的实验结果.同时,基于交叉增益调制原理,利用双光束结构,描述了载流子加热、光谱烧孔效应和双光子吸收等非线性效应引起的增益压缩.理论分析的结果为改善SOA的动态特性提供了指导. 关键词:半导体光放大器超快非线性效应增益色散性

关 键 词:半导体光放大器  超快非线性效应  增益色散性
文章编号:1000-3290/2006/55(09)/4713-07
收稿时间:2006-01-19
修稿时间:2006-01-192006-03-09

Theoretical study on ultrafast response of semiconductor optical amplifier
Jiang Zhong,Zhang Xin-Liang,Huang De-Xiu. Theoretical study on ultrafast response of semiconductor optical amplifier[J]. Acta Physica Sinica, 2006, 55(9): 4713-4719
Authors:Jiang Zhong  Zhang Xin-Liang  Huang De-Xiu
Affiliation:Wuhan National Laboratory for Optoelectronics and Institute of Optoelectronies Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
Abstract:We proposed a novel method to analyze the propagation of sub-picosecond optical pulses through semiconductor optical amplifiers(SOA),fully considering spectral dispersion of ultrashort pulses. A reasonable model is established via sampling the pulses simultaneously in time domain and frequency domain. Based on the established model,we observed an evident shift of the pulse spectrum,which agrees well with the experiment results in literature. Further,the relationship is discussed respectively between the value of shift and several external conditions,including wavelength,energy,width of the pulse,length of SOA and injected current. Gain suppression induced by ultrafast nonlinearities including carrier heating,spectral hole burning and two-photon absorption is described in detail,employing two-beam configuration. The simulated results give good guidance to the improvement of ultrafast dynamic characteristics of SOAs.
Keywords:semiconductor optical amplifier   ultrafast optical nonlinearity   gain dispersion
本文献已被 CNKI 维普 万方数据 等数据库收录!
点击此处可从《物理学报》浏览原始摘要信息
点击此处可从《物理学报》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号