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year 27, Issue 2 (ICOP & ICPET 2021 2021)
ICOP & ICPET _ INPC _ ICOFS 2021, 27(2): 503-506 |
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Mirzaei Moghadam M, Shahshahani F. Numerical analysis of the effect of net cavity dispersion and dispersion of each cavity components on the output pulse width of the mode-locked fiber laser. ICOP & ICPET _ INPC _ ICOFS 2021; 27 (2) :503-506
URL: http://opsi.ir/article-1-2413-en.html
URL: http://opsi.ir/article-1-2413-en.html
1- Department of Physics and Chemistry, Alzahra University, Tehran
Abstract: (889 Views)
In this paper the effect of net cavity dispersion and dispersion of each cavity components on the pulse width of the mode locked fiber laser is investigated.one of the effective parameters on pulse width is the modulation depth of saturable absorber. Numerical study shows that with increasing modulation depth, the pulse width decreases. The components used in fiber laser cavity also have significant effects on pulse width.in this paper the Intra-cavity pulse evolution is also modeled when the net cavity dispersion approaches zero. It is shown that the pulse width is minimized and compresses and stretches periodically per cavity round-trip and some components have a compensatory role in reducing the pulse time width. The results are based on the numerical solution of nonlinear Schrödinger equation using split step Fourier method.
Keywords: dispersion, mode locking, Erbium doped fiber laser, nonlinear Schrödinger Equation, carbon nanotube
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