| 2 μm波段半导体可饱和吸收镜被动调Q光纤激光器 |
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| 引用本文： | 杨未强,侯静,张斌,宋锐,刘泽金.2 μm波段半导体可饱和吸收镜被动调Q光纤激光器[J].强激光与粒子束,2012,24(7):1515-1516. |
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| 作者姓名： | 杨未强 侯静 张斌 宋锐 刘泽金 |
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| 作者单位： | 国防科学技术大学 光电科学与工程学院,长沙,410073 |
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| 基金项目： | 国家自然科学基金面上项目 |
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| 摘 要： | 基于半导体可饱和吸收镜和光纤光栅实现了稳定的2 m波段被动调Q光纤脉冲激光器，输出激光的中心波长为1958.2 nm。随着泵浦功率的增加，输出脉冲的重复频率不断增加，而对应脉冲的宽度不断减小。输出脉冲重复频率的变化范围为20～80 kHz，脉冲宽度的变化范围为490 ns～1 s。当泵浦功率为1.3 W时，调Q光纤激光器的最大平均输出功率为91 mW，脉冲重复频率为80 kHz，脉冲宽度为490 ns，对应的最大单脉冲能量约为1.14 J。
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| 关 键 词： | 光纤激光器 调Q 半导体可饱和吸收镜 光纤光栅 铥/钬共掺光纤 |
| 收稿时间： | 2012/4/1 |
A semiconductor saturable absorber mirror passively Q-switched fiber laser near 2 μm band |
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| Yang Weiqiang
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Hou Jing
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Zhang Bin
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Song Rui
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Liu Zejin.A semiconductor saturable absorber mirror passively Q-switched fiber laser near 2 μm band[J].High Power Laser and Particle Beams,2012,24(7):1515-1516. |
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| Authors: | Yang Weiqiang Hou Jing Zhang Bin Song Rui Liu Zejin |
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| Affiliation: | (College of Opto-electric Science and Engineering, National University of Defense Technology, Changsha 410073, China) |
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| Abstract: | A passively Q-switched fiber laser near 2 μm band was obtained based on semiconductor saturable absorber mirror and fiber grating. The central wavelength of the laser was 1 958.2 nm. The pulse repetition rate of output signal increases with the rise of incident pump power, but the pulse width decreases. The pulse repetition rate was in the range of 20 kHz to 80 kHz and the pulse width was changed from 490 ns to 1 μs. When the incident pump power was 1.3 W, the maximum output power of the Q-switched fiber laser was 91 mW, the pulse repetition rate was 80 kHz, the pulse width was 490 ns and the single pulse energy was 1.14 μJ. |
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| Keywords: | fiber laser Q-switch semiconductor saturable absorber mirror fiber grating Tm/Ho codoped fiber |
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