Abstract
The adaptive step-size methods including conservation quantity error method (CQEM) and local error method (LEM) are described and used to investigate the femtosecond pulse evolution in liquid-core photonic crystal fibers. The efficiency and accuracy of the numerical results obtained from CQEM and LEM in frequency domain (FD) and time domain (TD) are compared and discussed under the fixed numerical parameters respectively. The numerical results represent that LEM has the higher accuracy due to the integration of nonlinear operator that is more efficient than CQEM. The femtosecond pulse evolution in liquid-core photonic crystal fiber is described and analyzed using LEM. Moreover, the influences of the peak power of pulse and length of liquid-core photonic crystal fibers on the supercontinuum generation are also obtained based on LEM-FD. This study is helpful optimizing the numerical process in ultra-short pulse evolution based on adaptive step-size methods.
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Acknowledgements
This work was supported by the National Natural Science Foundation of China under Grant No. 61505160, the Youth Science and Technology New Star Project of Shaanxi Province under Grant No. 2018KJXX-042 and the Natural Science Basic Research Program of Shaanxi (Program No. 2019JM-084 and No. 2016JQ6051).
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Wen, J., Duan, L., Ma, C. et al. Numerical simulation and analysis of femtosecond pulse evolution in liquid-core photonic crystal fiber based on adaptive step-size methods. Opt Quant Electron 51, 184 (2019). https://doi.org/10.1007/s11082-019-1906-9
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DOI: https://doi.org/10.1007/s11082-019-1906-9