By using the pre-signal light as the control light, we propose a method to suppress the transient effect of erbium-doped fiber amplifiers for low-frequency pulse signals. The pattern effect of the pulse signals within the low frequency range (400–1000 Hz) and 1550 nm band is relieved, and the optical surge coefficient Cs decreases to about 0.54 dB. Experimental results show that the proposed method has better performances in suppressing pattern effect in comparison with the conventional continuous light control scheme and higher output gain compared to the compensation pulsed light method. Our proposed pattern effect suppression approach based on the pre-signal control method is anticipated to find promising applications in the field of optical communications.

中文翻译：

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基于预信号控制方法的脉冲信号模式效应抑制

通过使用预信号光作为控制光，我们提出了一种抑制掺铒光纤放大器对低频脉冲信号瞬态效应的方法。低频范围（400~1000 Hz）和1550 nm波段脉冲信号的图案效应得到缓解，光浪涌系数Cs降低至0.54 dB左右。实验结果表明，与传统的连续光控制方案相比，该方法具有更好的抑制图案效应的性能，并且与补偿脉冲光方法相比具有更高的输出增益。我们提出的基于预信号控制方法的图案效应抑制方法预计将在光通信领域找到有前景的应用。