Group velocity manipulation in active fibers using mutually modulated cross-gain modulation: from ultraslow to superluminal propagation

被引：40

作者：

Qian, K. ^{[1
]}

Zhan, L. ^{[1
]}

Zhang, L. ^{[1
]}

Zhu, Z. Q. ^{[1
]}

Peng, J. S. ^{[1
]}

Gu, Z. C. ^{[1
]}

Hu, X. ^{[1
]}

Luo, S. Y. ^{[1
]}

Xia, Y. X. ^{[1
]}

机构：

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

来源：

OPTICS LETTERS | 2011年 / 36卷 / 12期

基金：

中国国家自然科学基金;

关键词：

STIMULATED BRILLOUIN-SCATTERING; SLOW-LIGHT; AMPLIFIER; DELAY;

D O I：

10.1364/OL.36.002185

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose and experimentally demonstrate the propagation of slow/fast light in an erbium-doped fiber (EDF) using mutually modulated cross-gain modulation. The group velocity of the light signal can be manipulated by the effect of gain cross-saturation modulation by a saturating light at an arbitrary wavelength in the gain bandwidth of the EDF. The ultraslow propagation with a small group velocity of 5.6 x 10(-3)c (c is the light speed in free space) and superluminal propagation with a negative group velocity of -1.1 x 10(-3)c has been observed under different modulation phases. (C) 2011 Optical Society of America

引用

页码：2185 / 2187

页数：3

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