Gain enhancement in L-band EDFA through a double-pass technique
Gain enhancement in L-band EDFA through a double-pass technique
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DOI：
10.1109/68.986791
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发表时间：
2002-03-01
影响因子：
2.6
通讯作者：
Ahmad, H
中科院分区：
文献类型：
--
作者：
Harun, SW;Poopalan, P;Ahmad, H
与传统的单程放大不同，通过使用环行器使掺铒光纤（EDF）中的前向放大的自发辐射和信号双通，观察到长波长带（L带）中的增益的改善。当泵浦功率为98 mW，输入功率为-20 dBm时，对1570 nm信号的增益增强可达11 dB。然而，观察到约2dB的噪声系数损失。
An improvement of gain in the long-wavelength band (L-band) is observed by double passing the forward amplified spontaneous emission and signal in the erbium-doped fiber (EDF) using a circulator, unlike the conventional single pass amplification. A gain enhancement as high as 11 dB is obtained for a 1570-nm signal with an input power of -20 dBm at 98 mW of pump power. However, a noise figure penalty of about 2 dB is observed.