High efficiency supercontinuum generation using ultra-long Raman fiber cavities.
High efficiency supercontinuum generation using ultra-long Raman fiber cavities.
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DOI：
10.1364/oe.17.017909
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发表时间：
2009-09
期刊：
影响因子：
3.8
通讯作者：
A. El-Taher;J. Ania-Castañón;V. Karalekas;P. Harper
中科院分区：
文献类型：
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作者：
A. El-Taher;J. Ania-Castañón;V. Karalekas;P. Harper
首次实验研究了多光纤超长拉曼光纤激光腔中超连续谱的产生。我们证明了显着增强的光谱平坦度和超连续谱产生效率，仅使用传统的单模石英光纤。在泵浦功率仅为1.63W的情况下，采用优化的TW/HNLF混合腔，获得了带宽>260 nm（1440 ~>1700 nm）约15 dB的超连续谱光源，在180 nm范围内的平坦度<1dB。讨论了超连续谱与输入泵浦功率和超长拉曼腔的关系。
Supercontinuum generation in a multi-fiber ultra-long Raman fiber laser cavity is experimentally investigated for the first time. We demonstrate significantly enhanced spectral flatness and supercontinuum generation efficiency using only conventional single mode silica fiber. With a pump power of only 1.63W a approximately 15 dB bandwidth >260 nm wide (from 1440 to >1700 nm) supercontinuum source is reported with a flatness of <1 dB over 180 nm using an optimised hybrid TW/HNLF cavity. We address the dependence of the supercontinuum spectrum on the input pump power and ultra-long Raman cavity.