Group delay tuning in active fiber Bragg gratings: From superluminal to subluminal pulse reflection

被引：26
|
作者：
Longhi, S
机构：
[1] Politecn Milan, Dept Fis, I-20133 Milan, Italy
[2] Politecn Milan, Ist Foton & Nanotecnol, CNR, I-20133 Milan, Italy
来源：
PHYSICAL REVIEW E | 2005年 / 72卷 / 05期
关键词：
D O I：
10.1103/PhysRevE.72.056614
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
Group delay tuning of optical pulses in pumped asymmetric fiber Bragg gratings below lasing threshold is theoretically proposed. A gain-controlled transition from superluminal to subluminal pulse reflection is analytically investigated in uniform gratings with a pi phase shift and in tapered gratings.
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页数：5
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