国产30/600μm掺镱光纤实现4.1kW激光输出

庞璐; 王标; 衣永青; 潘蓉; 刘君; 耿鹏程; 宁鼎

doi:10.11884/HPLPB201830.180250

国产30/600μm掺镱光纤实现4.1kW激光输出

doi: 10.11884/HPLPB201830.180250

中国电子科技集团公司第四十六研究所, 天津 300220

基金项目:

国家自然科学基金项目 61405179

详细信息

作者简介:
庞璐(1980-), 男, 高级工程师, 从事特种光纤的研究; Guhong_2005@hotmail.com

通讯作者:
王标(1988-), 男, 博士, 从事特种光纤的研究; biao_wang@126.com

中图分类号: TN244
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- 被引次数: 0
出版历程
- 收稿日期: 2018-09-28
- 修回日期: 2018-10-26
- 刊出日期: 2018-11-15

4.1 kW domestic Yb-doped laser fiber

The 46th Research Institute of China Electronics Technology Group Corporation, Tianjin 300220, China

摘要

摘要: 采用化学气相沉积结合气相/液相复合掺杂方式制备30/600 μm掺镱双包层光纤，石英纤芯中的掺杂组分为Yb₂O₃, Al₂O₃，P₂O₅。基于976 nm发光二极管反向抽运方式，构建全光纤化的主控振荡器功率放大器结构对增益光纤进行测试。实验中，种子源功率为189 W，当泵浦总功率为4747 W时，激光输出功率为4120 W，放大级光光效率为85%，3 dB带宽为1.6 nm。激光器连续工作1 h，激光功率稳定在4100 W，未发生明显的功率衰退现象。
- 气相/液相复合掺杂 /
- 双包层掺镱光纤 /
- 光纤激光器
Abstract: A high power 30/600 μm ytterbium doped double-cladding fiber with excellent power stability was fabricated by MCVD in-situ vapor phase/solution doping technology. The dopants of the silica fiber core include Yb₂O₃, Al₂O₃ and P₂O₅. The master oscillator power amplifier configuration based on back pump was constructed to test the Yb-doped fiber performance. In the experiment, the power of the seed was 189 W, the total power of the pump power was 4767 W, and the maximum output power was 4120 W with a slope efficiency of 85%. In addition, no stimulated Raman scattering was found in the output laser spectrum, and the 3dB band width was measured to be 1.6 nm. The fiber laser continued to work for one hour, the output power was stable at 4.1 kW.
- vapor phase/solution doping /
- ytterbium doped double-cladding fiber /
- fiber laser

HTML全文

图 1 30/600 μm双包层掺镱光纤截面图

Figure 1. Cross section of the 30/600 μmyb-doped fiber

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图 2 掺杂元素在纤芯中的分布

Figure 2. Distribution of the doped elements in the core

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图 3 掺镱光纤的包层吸收系数

Figure 3. Cladding absorption of the Yb-doped fiber

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图 4 反向泵浦光纤放大器结构示意图

Figure 4. Schematic diagram of the back pump fiber laser

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图 5 输出功率与泵浦功率的关系

Figure 5. Relationship between output power and pump power

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图 6 4120 W时，激光的输出光谱

Figure 6. Laser spectrum(4120 W)

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图 7 4.1 kW功率输出1 h稳定性

Figure 7. Power stability of 4.1 kW laser output in 1 h

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参考文献(10)

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