中国激光, 2013, 40 (2): 0202006, 网络出版: 2012-12-21   

掺铥全光纤结构2.0 μm波段宽带超荧光光源 下载: 574次

Thulium-Doped All-Fiber Broadband Superfluorescent Source at 2 μm Wavelength
作者单位
北京工业大学激光工程研究院国家产学研激光技术中心, 北京 100124
摘要
报道了高功率全光纤结构2.0 μm波段宽带超荧光光源。超荧光种子源采用双包层掺铥光纤作为增益介质,中心波长为790 nm的多模半导体激光器作为抽运源,获得了稳定的中心波长为1952 nm的宽带超荧光输出,最大输出功率为220 mW,3 dB光谱带宽为40 nm。超荧光种子源经过一级双包层掺铥光纤放大器后,输出功率达到了2.6 W,光纤放大器斜率效率为46%,相应的光谱范围为1900~2100 nm,3 dB光谱带宽为33 nm。
Abstract
A high power 2.0 μm thulium-doped broadband amplified spontaneous emission (ASE) source is reported by using an all-fiber master oscillator power-amplifer (MOPA) configuration. The ASE seed source produces average output power of about 220 mW by using a segment of thulium-doped double-clad fiber pumped by fiber-pigtailed multimode diodes at 790 nm. The center wavelength and the 3 dB bandwidth are 1952 nm and 40 nm, respectively. A thulium-doped all-fiber amplifier is used to boost average output power to 2.6 W with a slope efficiency of 46% with respect to the launched pump power. The emission spans the wavelength range from 1900 nm to 2100 nm with a 3 dB bandwidth of 33 nm, and the maximum output power of the ASE fiber amplifier is currently limited by available pump power.
参考文献

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刘江, 王璞. 掺铥全光纤结构2.0 μm波段宽带超荧光光源[J]. 中国激光, 2013, 40(2): 0202006. Liu Jiang, Wang Pu. Thulium-Doped All-Fiber Broadband Superfluorescent Source at 2 μm Wavelength[J]. Chinese Journal of Lasers, 2013, 40(2): 0202006.

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