调Q及连续掺Yb光纤激光器中的自锁模研究

CORC > 上海光学精密机械研究所 > 中国科学院上海光学精密机械研究所 > 高功率激光物理国家实验室

	调Q及连续掺Yb光纤激光器中的自锁模研究
	冯小星 ; 陈柏 ; 朱毅 ; 陈嘉琳 ; 梁丽萍 ; 林尊琪
刊名	中国激光
	2005
卷号	32 期号:7 页码:873
关键词	激光技术导波与光纤光学锁模光纤激光器调Q 自锁模 laser technique guided wave and fiber optics mode-locked fiber laser Q-switching self mode-locking
ISSN号	0258-7025
其他题名	Study of self mode-locking in Q-switched and continuous working Yb-doped fiber laser
中文摘要	在用半导体激光器抽运的单包层掺Yb调Q光纤激光器中观察到了清晰稳定的自锁模脉冲序列。脉冲包络形状为调Q脉冲。每个锁模脉冲的幅值由其在调Q脉冲中的相应位置决定。经过分析，认为自相位调制是调Q光纤激光器中产生锁模的主要原因。自相位调制的存在使得光脉冲的频谱被展宽，当这种展宽和腔的模式间隔相差不多时，腔内的模式便能相互作用，直到它们之间产生一个固定的相位关系。也即形成锁模。在此基础上。去掉声光晶体，并用两个光栅作为腔镜，实现了全光纤法布里-珀罗(F-P)腔锁模光纤激光器。改变腔结构，分别采用光栅和光纤反射圈作为; A clear and stable self mode-locked pulse train was observed with Q-switched pulse envelope in diode pumped Yb-doped Q-switched fiber lasers. Self phase modulation (SPM) is regarded as the main reason to generate mode-locked pulses in this Q-switched fiber laser. The main effect of SPM is to broaden the spectrum of the optical pulses. If the width of the broadened spectrum is comparable with the cavity-mode spacing then the modes can interact with each other, and a fixed-phase relationship between different oscillating axial modes is maintained, resulting in the mode-locked operation. On this basis, the acousto-optic modulator (AOM) was removed and two gratings were used as the cavity mirrors, and an all-fiber Fabry-Perot (F-P) cavity fiber laser was realized. Similar mode-locked pulses were observed when using two ring reflectors as the cavity mirrors. It is observed that mode-locking has close relations with fiber length, Yb-doped concentration and pump power. Such kind of lasers provide a new method to generate mode-locked pulses.
分类号	TN248.1;TN253
收录类别	ei
语种	中文
公开日期	2009-09-18
内容类型	期刊论文
源URL	[http://ir.siom.ac.cn/handle/181231/3054]
专题	上海光学精密机械研究所_高功率激光物理国家实验室
推荐引用方式 GB/T 7714	冯小星,陈柏,朱毅,等. 调Q及连续掺Yb光纤激光器中的自锁模研究[J]. 中国激光,2005,32(7):873, 877.
APA	冯小星,陈柏,朱毅,陈嘉琳,梁丽萍,&林尊琪.(2005).调Q及连续掺Yb光纤激光器中的自锁模研究.中国激光,32(7),873.
MLA	冯小星,et al."调Q及连续掺Yb光纤激光器中的自锁模研究".中国激光 32.7(2005):873.