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高功率被动调Q纳秒脉冲掺铥光纤激光器 被引量:4

High-Power Passively Q-Switched Nanosecond-Pulsed Thulium-Doped Fiber Laser
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摘要 报道了高功率全光纤MOPA结构的纳秒脉冲掺铥光纤激光器,其包括低功率被动调Q掺铥光纤激光器种子源,以及两级全光纤结构790nm半导体抽运的高功率掺铥光纤放大器。随抽运功率的改变,激光种子源产生的脉冲重复频率在77240kHz可调,最窄激光脉冲宽度为250ns,最大平均输出功率为73mW。经过两级全光纤掺铥光纤放大器放大之后,最高平均输出功率达到了20W,相应的单脉冲能量为100μJ,激光脉冲宽度为270ns,中心波长为1966nm。 A high power all-fiber nanosecond-pulsed thulium-doped fiber master oscillator power amplifier (MOPA) system that consists of low power passively Q-switched thulium-doped fiber laser seed and two-stage thulium-doped double-clad all-fiber amplifiers pumped by high power multimode diodes at 790 nm is studied. The repetition rate of the thulium-doped fiber laser seeder is tunable from 77 kHz to 240 kHz with the increase of pump power, the minimum pulse width is measured to be 250 ns and the maximum average output power is 73 mW. Two-stage double- clad thulium-doped all-fiber amplifiers are used to boost average power to 20 W, corresponding to single pulse energy of 100 μJ. The pulse width is 270 ns, and laser center wavelength is 1966 nm.
出处 《中国激光》 EI CAS CSCD 北大核心 2013年第12期25-29,共5页 Chinese Journal of Lasers
基金 国家自然科学基金重点项目(61235010) 国家自然科学基金面上项目(61177048) 北京市自然科学基金B类重点项目(KZ2011100050011)
关键词 激光器 光纤放大器 掺铥光纤 被动调Q 中红外激光 lasers fiber amplifier thulium-doped fiber passively Q-switched mid-infrared lasers
作者简介 刘江(1982-),男,博士研究生,主要从事高功率光纤激光器、高功率光纤放大器等方面的研究。E—mail:liujiang@emails.bjut.edu.cn 导师简介:王璞(1965-),男,教授,博士生导师,主要从事光纤激光器、光纤放大器及新型光纤光学功能性器件等方面的研究。E-mail:wangpuemail@bjut.edu.cn(通信联系人)
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参考文献13

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共引文献61

同被引文献54

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