Impact of pump-phase modulation on dual-pump fiber-optic parametric amplifiers and wavelength converters
Impact of pump-phase modulation on dual-pump fiber-optic parametric amplifiers and wavelength converters
复制标题
泵浦相位调制对双泵浦光纤参量放大器和波长转换器的影响
DOI：
10.1109/lpt.2005.856346
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发表时间：
2005
影响因子：
2.6
通讯作者：
G. Agrawal
中科院分区：
文献类型：
--
作者：
Fatih Yaman;Qiang Lin;S. Radic;G. Agrawal
抑制受激布里渊散射所需的泵浦相位的调制示出在放大和波长转换的信号时，使用双泵浦光纤参量放大器引起大的功率变化。功率变化的物理根源与光纤色散引起的泵浦幅度调制有关。分析和数值计算表明，当泵浦相位以急剧上升时间快速变化时，信号或闲频的信噪比可降低到23 dB以下。
Modulation of pump phases required for suppressing stimulated-Brillouin scattering is shown to cause large power changes in both the amplified and wavelength-converted signals when dual-pump fiber-optic parametric amplifiers are used. The physical origin of power changes is related to pump-amplitude modulations caused by fiber dispersion. Analytical as well as numerical calculations show that the signal-to-noise ratio of the signal or idler may reduce to below 23 dB when pump phases change rapidly with a sharp rise time.