Dual-stage gain-clamped erbium-doped fiber amplifier with fiber Bragg grating
Dual-stage gain-clamped erbium-doped fiber amplifier with fiber Bragg grating
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DOI：
10.1002/lapl.200710117
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发表时间：
2008-04
影响因子：
1.7
通讯作者：
M. Mahdi;A. Zamzuri;A. Ahmad;M. I. Md Ali;R. Mohamad
中科院分区：
文献类型：
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作者：
M. Mahdi;A. Zamzuri;A. Ahmad;M. I. Md Ali;R. Mohamad
我们提出了一种双级增益箝位掺铒光纤放大器。第一级放大器由一段短的掺铒光纤组成，以产生低噪声系数。第二级由反向传播环形激光器构成，其中信号和激射波长在相反方向上传播。通过反射型光纤布拉格光栅选择激光波长。增益钳制机制可以通过改变光纤光栅的反射率或中心波长来调节。增益箝位值为11 dB至20.5 dB时，噪声系数损失约为1.5 dB。
We demonstrate a dual-stage gain-clamped erbium-doped fiber amplifier. The first-stage amplifier consists of a short length of erbium-doped fiber to produce low noise figures. The second-stage is constructed from a counter-propagating ring-laser, in which the signals and the lasing wavelength propagate in the opposite direction. The lasing wavelength is selected via a reflective-type of fiber Bragg grating. The gain-clamping mechanism can be adjusted by either changing the fiber Bragg grating reflectivity or center wavelength. The noise figure penalty is about 1.5 dB for the gain-clamping value from 11 dB to 20.5 dB.