High-Power Low-Noise Fiber Brillouin Amplifier for Tunable Slow-Light Delay Buffer
High-Power Low-Noise Fiber Brillouin Amplifier for Tunable Slow-Light Delay Buffer
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DOI：
10.1109/jqe.2008.2004601
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发表时间：
2008-11
影响因子：
2.5
通讯作者：
L. Xing;L. Zhan;S. Luo;Yuxing Xia
中科院分区：
文献类型：
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作者：
L. Xing;L. Zhan;S. Luo;Yuxing Xia
A high-power low-noise fiber Brillouin amplifier (FBA) has been demonstrated for slow-light delay buffer. Its features including gain, gain saturation, and noise figure (NF), have been characterized. Among them, the gain saturation is highlighted because it is a fundamental limitation for FBA-based slow-light buffer. It is testified that the gain saturation is more easily achieved for lower signal-to-pump ratio (SPR), and the NF is reduced at higher pump level when below Brillouin threshold. The experiment demonstrated that up to 20-ns delay enhancement could be obtained in this high-power FBA for a -30-dBm input signal, as well as with low NF. Besides, the analysis on how the performance of the high power FBA affects the slow-light delay buffer has been presented.
