[1]郭春雨,阮双琛,闫培光,等.调Q掺Yb大模面积光子晶体光纤激光器研究[J].深圳大学学报理工版,2007,24(1):79-84.
 GUO Chun-yu,RUAN Shuang-chen,YAN Pei-guang,et al.Research on the Q-switched large mode area Yb-doped photonic crystal fiber laser[J].Journal of Shenzhen University Science and Engineering,2007,24(1):79-84.
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调Q掺Yb大模面积光子晶体光纤激光器研究()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第24卷
期数:
2007年1期
页码:
79-84
栏目:
出版日期:
2007-01-30

文章信息/Info

Title:
Research on the Q-switched large mode area Yb-doped photonic crystal fiber laser
文章编号:
1000-2618(2007)01-0079-06
作者:
郭春雨1阮双琛1闫培光1杜晨林1周 睿1刘国荣2
1)深圳市激光工程重点实验室,深圳大学电子科学与技术学院,深圳518060;
2)驻天水地区军事代表室,陕西省宝鸡市 720065
Author(s):
GUO Chun-yu1RUAN Shuang-chen1YAN Pei-guang1DU Chen-lin1ZHOU Rui1and LIU Guo-rong2
1)College of Electronic Science and Technology,Shenzhen Key Laboratory of Laser Engineering,Shenzhen University,Shenzhen 518060,P.R.China
2)Military Representative Office in Tianshui,Shaanxi Baoji 720065,P.R. China
关键词:
光子晶体光纤大模面积双包层调Q多脉冲
Keywords:
photonic crystal fiberlarge mode areadouble-cladQ-switchedmultiple pulses
分类号:
TN 248.1;TN 253
文献标志码:
A
摘要:
利用掺Yb大模面积双包层光子晶体光纤和声光调制器(AOM)研制了调Q光子晶体光纤激光器.在65 kHz的重复频率下,得到了最大平均功率为2.5 W,脉冲宽度(FWHM)120 ns,峰值功率320 W,单脉冲能量38.5 μJ的调Q单模激光脉冲,激光中心波长为1 038.4 nm.分析介绍了实验中出现的多脉冲现象和激光脉冲重复频率的演化及其原因.
Abstract:
An acoustic optical Q-switched photonic crystal fiber laser was demonstrated with a large mode area ytterbium-doped double clad photonic crystal fiber as gain medium.A maximum average output power of 2.5 W was obtained at the repetition rate of 65 kHz with a pulse width of 120 ns,introducing to peak power and single-pulse energy of 320 W and 38.5 μJ,respectively.And the phenomena of multiple pulses and “pulse repetition rate evolution” were observed and discussed.In the condition of low repetition rates and short modulator opening time (high Q value state),there were several pulses in one Q-switch operation period because of the longer switching time.Moreover,during the increase of pump power,the so-called “pulse repetition rate evolution”was detected.If the pump power was too low to make the pulse build-up time longer than the Q-switch modulator opening time,the exact pulse repetition rate would be half of the modulator repetition rate.Further improvements would be made by optimizing the experimental configuration to shorten pulse width and scale the peak power.

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备注/Memo

备注/Memo:
收稿日期:2006-11-22;修回日期:2006-11-30
基金项目:深圳大学科研基金资助项目(4YPG)
作者简介:郭春雨(1981-),男(汉族),山西省忻州市人,深圳大学硕士研究生.E-mail:chunyuguolll@126.com
通讯作者:阮双琛(1963-)男(汉族),深圳大学教授、博士生导师.E-mail:scruan@szu.edu.cn
更新日期/Last Update: 2007-12-09