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The gain performance of two-pump fiber optical parametric amplifier (FOPA) pumped by different kinds of chirped pump pulses is investigated numerically. It shows that the gain performances of FOPA are evidently influenced by the shapes of chirped pump pulses. The highest and broadest gain spectrum is obtained with the 10th-order super-Gaussian pulse in case of identical energy and full width at half-maximum of the pump pulses. Finally, the signal gain is also affected by the poor symmetry of pump pulse, which leads to a low gain performance.
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Zhu et al. (2020) studied this question.
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