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Nonlinearity optimization of dissipative-soliton fiber laser for generation of pulses with 350 kW peak power

We demonstrate a nonlinearity optimization method by altering distribution of passive fibers in a dissipative-soliton mode-locked fiber laser to level up output parameters. In the numerical simulation, we found that the passive fiber segment after gain fiber characterizes the highest average B-integ...

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Bibliographic Details
Published in:High power laser science and engineering 2018, Vol.6, Article e27
Main Authors: Chi, Han, Liu, Bowen, Song, Youjian, Hu, Minglie, Chai, Lu, Shen, Weidong, Liu, Xu, Wang, Chingyue
Format: Article
Language:English
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Summary:We demonstrate a nonlinearity optimization method by altering distribution of passive fibers in a dissipative-soliton mode-locked fiber laser to level up output parameters. In the numerical simulation, we found that the passive fiber segment after gain fiber characterizes the highest average B-integral among fiber segments. By reducing the length of this fiber section and keeping the total passive fiber length as constant, the output pulse energy can be effectively scaled up while maintaining a short dechirped pulse duration, resulting in boosting peak power. With this method, 37-nJ pulses are generated from a dissipative-soliton mode-locked cladding pumped ytterbium-doped single-mode fiber laser in the experiment. The pulse can be dechirped to 66 fs with 350 kW peak power. Moreover, the pulse pedestal is suppressed by a vector-dispersion compressor.
ISSN:2095-4719
2052-3289
DOI:10.1017/hpl.2018.18