Superluminal Propagation at Negative Group Velocity in Optical Fibers Based on Brillouin Lasing Oscillation

被引：58

作者：

Zhang, Liang ^{[1
]}

Zhan, Li ^{[1
]}

Qian, Kai ^{[1
]}

Liu, Jinmei ^{[1
]}

Shen, Qishun ^{[1
]}

Hu, Xiao ^{[1
]}

Luo, Shouyu ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Minist Educ, State Key Lab Adv Opt Commun Syst & Networks, Dept Phys,Key Lab Laser Plasmas, Shanghai 200240, Peoples R China

来源：

PHYSICAL REVIEW LETTERS | 2011年 / 107卷 / 09期

基金：

中国国家自然科学基金;

关键词：

SLOW LIGHT-PROPAGATION; PULSE-PROPAGATION; ANOMALOUS-DISPERSION; DELAY; AMPLIFIER; SPEED;

D O I：

10.1103/PhysRevLett.107.093903

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report superluminal propagation in optical fibers using Brillouin lasing oscillation in a ring cavity. Negative group velocity propagation through a 10-m single mode fiber has been experimentally demonstrated. An advancement of 221.2 ns was observed before the input signal, which was achieved with a very high slope efficiency of 211: 3 ns/dB. This indicates that this way is suitable for long-distance low-loss superluminal propagation via optical fibers. Correspondingly, the group velocity is -0:151c and the group index is -6:636-the highest group velocity ever reported for optical fibers.

引用

页数：5

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