Pulse Evolution Characteristics in Self-Similar Mode-locked Fibre Laser

TU Cheng-Hou; LI Zhen; LEI Ting; LI Yong-Nan; GUO Wen-Gang; WEI Dai; ZHU Hui; ZHANG Shuang-Gen; LU Fu-Yun

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Pulse Evolution Characteristics in Self-Similar Mode-locked Fibre Laser

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A self-similar mode locked fibre laser is studied based on a numerical model. By introducing a dimensionless factor k to characterize the pulse shape, the self-similar pulse evolution, formation and the temporal and spectral shape changes due to the elements in the cavity are investigated throughout the iaser cavity. The results show that in the self-similar mode locked fibre laser, self-similar pulse is first formed in the single-mode fibre, which is then amplified in the gain fibre. Gain bandwidth has a small influence on pulse shape, so high energy self-similar pulse can be obtained after amplification. Because net cavity dispersion directly influences the pulse width as well as peak power after compression by a pair of gratings, which can determine the pulse self-similar evolution, it is very important to control the net cavity dispersion to a certain range to obtain self-similar pulses.

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《中国物理快报：英文版》 |2007年第11期|3175-3178|共4页
作者
TU Cheng-Hou; LI Zhen; LEI Ting; LI Yong-Nan; GUO Wen-Gang; WEI Dai; ZHU Hui; ZHANG Shuang-Gen; LU Fu-Yun;
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作者单位

Institute of Physics, Nankai University, Tianjin 300071;

Institute of Physics, Nankai University, Tianjin 300071;

Institute of Physics, Nankai University, Tianjin 300071;

Institute of Physics, Nankai University, Tianjin 300071;

Institute of Physics, Nankai University, Tianjin 300071;

Institute of Physics, Nankai University, Tianjin 300071;

Institute of Physics, Nankai University, Tianjin 300071;

Institute of Physics, Nankai University, Tianjin 300071;

Institute of Physics, Nankai University, Tianjin 300071;

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正文语种 chi
中图分类物理学;
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Pulse Evolution Characteristics in Self-Similar Mode-locked Fibre Laser

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