Numerical study on normalized split-step Fourier method and fourth-order Runge-Kutta method in laser pulses generation by use of photonic crystal fibers
Publish place: majlesi Journal of Electrical Engineering، Vol: 17، Issue: 3
Publish Year: 1402
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_MJEE-17-3_007
تاریخ نمایه سازی: 4 مهر 1402
Abstract:
In this work, we study the generation of ultrashort femtosecond laser pulses in photonic crystal fibers through the widely used symmetric split-step Fourier method (S-SSFM). The results are compared with the method of fourth-order Runge-Kutta method (RK۴) as the most recognized and powerful method in the analysis of the evolution of ultrashort femtosecond laser pulses. The results show that although S-SSFM is a widely used method, its accuracy decreases for the selected relatively large step sizes of ∆z in comparison with RK۴. In contrast, the accuracy of the mentioned methods becomes closer to each other by selecting relatively small step sizes of ∆z.
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Authors
Saeed Olyaee
Shahid Rajaee Teacher Training University (SRTTU)
Ashkan Ghanbari
Shahid Rajaee University