半导体光子学与技术：英文版

Superluminal Propagation in Er^3＋-doped Fiber Bragg Grating

Zhuo Zhong-chang, Zhong-chang, YU Yong-sen, Xuemei, Yu Yu, Yong-sen, Zheng, Wei Wei, Zhang, Yu-shu

Published Jan 1, 2005• 0 citations

Abstract

The method to pump the FBG w ritten into an Er 3+-doped optical fiber is proposed to increase the group velocity of a probing pulse based on the facts that pump-induced process chan ges the refractive index and dispersion associated with the 4 I_ 15/2- 4I_ 13/2 transition in Er 3+ -doped optical fiber. The system equations are derived. The effects of pump power an d doping concentration on the group velocity are discussed.

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