| 反共振空芯光纤中氘气受激拉曼散射实验研究 |
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| 引用本文： | 黄威,李智贤,崔宇龙,周智越,王泽锋.反共振空芯光纤中氘气受激拉曼散射实验研究[J].中国激光,2020(1):25-32. |
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| 作者姓名： | 黄威 李智贤 崔宇龙 周智越 王泽锋 |
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| 作者单位： | 国防科技大学前沿交叉学科学院 |
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| 基金项目： | 国家自然科学基金面上项目(11974427);湖南省自然科学基金杰出青年科学基金(2019JJ20023)。 |
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| 摘 要： | 报道了基于反共振空芯光纤的氘气单程和级联受激拉曼散射实验研究,详细分析了反共振空芯光纤中氘气受激拉曼散射的过程,研究了输出光谱和拉曼谱线功率随氘气压强和泵浦激光功率的变化规律,指出降低气压、采用峰值功率相对较低的泵浦脉冲可以有效抑制转动受激拉曼散射,提高振动受激拉曼散射效率。此外,通过进一步设计、拉制传输带位置合适、带宽较窄的反共振空芯光纤,利用1064 nm脉冲激光泵浦,可以实现高效的氘气一阶振动斯托克斯光(1561 nm)和二阶级联振动斯托克斯光(2925 nm)输出。
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| 关 键 词： | 激光器 受激拉曼散射 拉曼激光器 空芯光纤 |
Experimental Research on Stimulated Raman Scattering of Deuterium Gas in Anti-Resonance Hollow-Core Fibers |
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| Huang Wei,Li Zhixian,Cui Yulong,Zhou Zhiyue,Wang Zefeng.Experimental Research on Stimulated Raman Scattering of Deuterium Gas in Anti-Resonance Hollow-Core Fibers[J].Chinese Journal of Lasers,2020(1):25-32. |
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| Authors: | Huang Wei Li Zhixian Cui Yulong Zhou Zhiyue Wang Zefeng |
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| Affiliation: | (State Key Laboratory of Pulsed Power Laser Technology,Hunan Provincial Key Laboratory of High Energy Laser Technology,College of Advanced Interdisciplinary Studies,National University of Defense Technology,Changsha,Hunan 410073,China) |
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| Abstract: | This paper reports the experimental study of the single-pass and cascaded stimulated Raman scattering(SRS) of deuterium gas in anti-resonance hollow-core fibers(AR-HCFs). The process of SRS of deuterium gas in AR-HCF is analyzed in detail and the variations in the output spectrum and Raman power with the pressure of deuterium gas and the pump laser power are studied as well. It is found that the rotational SRS can be effectively suppressed and the efficiency of vibrational SRS is improved by reducing the pressure and using pump laser pulses with a relatively low peak power. In addition, by further designing and fabricating an AR-HCF with transmission bands in the right position and narrow bandwidths, efficient first-order vibrational Stokes light(1561 nm) and second-order cascaded vibrational Stokes light(2925 nm) can be output via pumping with a 1064 nm pulsed laser. |
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| Keywords: | lasers stimulated Raman scattering Raman lasers hollow-core fibers |
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