Influences of cavity dispersion distribution on the output pulse properties of an all-normal-dispersion fiber laser*
Influences of cavity dispersion distribution on the output pulse properties of an all-normal-dispersion fiber laser*
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DOI：
10.1088/1674-1056/24/7/074207
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发表时间：
2015-05
影响因子：
1.7
通讯作者：
Pan Li;Lei Shi;Qing-Fu Sun;S. Feng;Q. Mao
中科院分区：
文献类型：
--
作者：
Pan Li;Lei Shi;Qing-Fu Sun;S. Feng;Q. Mao
研究了腔内色散分布对全正常色散光纤激光器输出脉冲特性的影响。数值模拟结果表明，当色散光纤的相对长度增加时，在腔总色散或光纤长度固定的情况下，ANDi光纤激光器输出脉冲的时间宽度和光谱带宽减小，脉冲能量增加，压缩脉冲宽度增加。这些模拟预测已被我们的实验结果所证实。其原因可能是在相同长度的情况下，非线性光纤中积累的非线性相移大于色散光纤中积累的非线性相移。
In this paper, the influences of the dispersion distribution in the cavity on the output pulse properties of the all-normal-dispersion (ANDi) fiber laser are investigated. Our simulations show that, as the relative length of the dispersion fiber increases, the temporal width and the spectral bandwidth of the output pulse for an ANDi fiber laser with fixed total cavity dispersion or fiber length are decreased, while the pulse energy is enhanced and the compressed pulse width is increased. These simulation predictions have been proved by our experimental results. The reason may be that the nonlinear phase shift accumulated in the nonlinear fiber is more than that in the dispersion fiber if they have the same length.