瓦级双包层光纤超荧光光源的实验研究

孔令峰; 楼祺洪; 周军; 薛冬; 董景星; 魏运荣

中国激光, 2005, 32 (6): 757, 网络出版: 2006-06-06

瓦级双包层光纤超荧光光源的实验研究

Experimental Research on Watts Double Clad Fiber Superfluorescent Source

论文大纲

孔令峰 ^1,2,*楼祺洪 ¹周军 ¹薛冬 ¹董景星 ¹魏运荣 ¹

作者单位

¹ 中国科学院上海光学精密机械研究所,上海 201800

² 中国科学院研究生院,北京 100039

激光技术双包层光纤超荧光双色镜 laser technique double clad fiber superfluorescent dichroic mirror

摘要

采用大功率半导体激光器抽运25 m掺Yb双包层光纤,在单程装置中,前向(SPF)和后向(SPB)分别获得了1.46 W和1.82 W最大超荧光功率,斜度效率分别为23.4%和29.2％,3 dB带宽最大为11 nm。采用特定范围波长双色镜作为前腔镜,形成双程前向(DPF)装置,获得最大超荧光输出功率2.12 W,此时斜度效率为43.2%,中心波长在1070 nm,输出光谱平坦性较好,3 dB带宽从单程的11 nm提高到42 nm。

Abstract

The experimental results using two different configuration on high-power Yb-doped double-cladding fiber superfluorescent source (SFS) pumped by 975 nm laser diode are reported. In single-pass forward (SPF) and single-pass backward (SPB) design, the maximum superfluorescent output power is 1.46W and 1.82W, while the slope efficiency is 23.4% and 29.2% respectively. In double-pass forward (DPF) configuration using the dichroic mirror as the front cavity mirror, the maximum superfluorescent output power is 2.12 W with the slope efficiency of 43.2%. And central wavelength of superfluorescent spectrum is 1070 nm, the flatness of output SFS spectrum is greatly improved with the 3 dB bandwidth from 11 nm to 42 nm.

参考文献

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孔令峰, 楼祺洪, 周军, 薛冬, 董景星, 魏运荣. 瓦级双包层光纤超荧光光源的实验研究[J]. 中国激光, 2005, 32(6): 757. 孔令峰, 楼祺洪, 周军, 薛冬, 董景星, 魏运荣. Experimental Research on Watts Double Clad Fiber Superfluorescent Source[J]. Chinese Journal of Lasers, 2005, 32(6): 757.

瓦级双包层光纤超荧光光源的实验研究

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