提出新的目标函数，综合考虑增益带宽、开关增益、增益平坦度等特征参数。
A simple object function is proposed considering the gain bandwidth, on-off gain, gain flatness and other characteristic parameters.
分析了喇曼光纤放大器的泵浦光源个数、波长、功率等因素对放大器增益平坦度的影响。
The influences on the gain flatness of the Raman fiber amplifier by the number of pumps, wavelength, power and other factors are also analysed.
典型的掺铒光纤增益谱线由一个谱峰和后面的谱肩组成，它们之间的功率差异造成了对光纤陀螺可应用的EDSFS带宽和平坦度的限制。
The typical erbium-doped fiber gain spectrum is a combination of a high-intensity region and a flat part spectrum, and the power difference has limited the bandwidth of EDSFS.
典型的掺铒光纤增益谱线由一个谱峰和后面的谱肩组成，它们之间的功率差异造成了对光纤陀螺可应用的EDSFS带宽和平坦度的限制。
The typical erbium-doped fiber gain spectrum is a combination of a high-intensity region and a flat part spectrum, and the power difference has limited the bandwidth of EDSFS.
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