| 同带抽运高效率光纤放大器 |
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| 引用本文： | 肖虎,冷进勇,吴武明,王小林,马阎星,周朴,许晓军,赵国民.同带抽运高效率光纤放大器[J].物理学报,2011,60(12):124207-124207. |
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| 作者姓名： | 肖虎 冷进勇 吴武明 王小林 马阎星 周朴 许晓军 赵国民 |
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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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| 摘 要： | 以光纤光栅为谐振腔搭建了波长为1020 nm的光纤激光器,并通过两级级联放大获得了590 mW的最大输出功率. 利用获得的波长为1020 nm的激光进行了波长为1064 nm种子光同带抽运放大,实验研究了不同增益光纤长度时放大器的输出功率和转换效率. 当增益光纤长度为8.5 m时,放大器最大输出功率为385 mW,斜率效率为81%. 进行了波长为976 nm的半导体激光器直接抽运波长为1064 nm种子光的实验. 在增益光纤长度最优时,其斜率效率为56.4%. 实验结果表明,同带抽运方式比传统抽运方式具有更高的转换效率. 研究结果可为波长为1020 nm的激光高功率放大和波长为1064 nm的光纤激光高功率同带抽运放大提供一定的参考.
关键词：
同带抽运
光纤放大器
斜率效率
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| 关 键 词： | 同带抽运 光纤放大器 斜率效率 |
| 收稿时间： | 1/4/2011 12:00:00 AM |
| 修稿时间： | 8/9/2011 12:00:00 AM |
High efficiency tandem-pumped fiber amplifier |
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| Xiao Hu,Leng Jin-Yong,Wu Wu-Ming,Wang Xiao-Lin,Ma Yan-Xing,Zhou Pu,Xu Xiao-Jun and Zhao Guo-Min.High efficiency tandem-pumped fiber amplifier[J].Acta Physica Sinica,2011,60(12):124207-124207. |
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| Authors: | Xiao Hu Leng Jin-Yong Wu Wu-Ming Wang Xiao-Lin Ma Yan-Xing Zhou Pu Xu Xiao-Jun and Zhao Guo-Min |
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| Institution: | College of Opto-electric Science and Engineering, National University of Defense Technology, Changsha 410073, China;College of Opto-electric Science and Engineering, National University of Defense Technology, Changsha 410073, China;College of Opto-electric Science and Engineering, National University of Defense Technology, Changsha 410073, China;College of Opto-electric Science and Engineering, National University of Defense Technology, Changsha 410073, China;College of Opto-electric Science and Engineering, National University of Defense Technology, Changsha 410073, China;College of Opto-electric Science and Engineering, National University of Defense Technology, Changsha 410073, China;College of Opto-electric Science and Engineering, National University of Defense Technology, Changsha 410073, China;College of Opto-electric Science and Engineering, National University of Defense Technology, Changsha 410073, China |
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| Abstract: | A 1020 nm fiber laser is designed based on fiber Bragg grating and then its output power is boosted to 590 mW through a two-stage amplifier. A tandem pumping fiber amplifier is constructed with the 1020 nm laser used as a pump source. The output power and the efficiency of the amplifier are measured with different lengths of gain fiber. A 385 mW maximum output power with an 81% slope-efficiency is achieved when the gain fiber is 8.5 m. The output power and the efficiency of a traditional amplifier in which 976 nm diode laser is used as a pump source are also measured. The experimental results indicate that tandem pumping fiber amplifier can achieve a higher efficiency than traditional fiber amplifier. |
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| Keywords: | tandem pumping fiber amplifier slope-efficiency |
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