Superluminal Propagation in Er^3＋-doped Fiber Bragg Grating
Zhuo Zhong-chang, Zhong-chang, YU Yong-sen +7 more
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.
半导体光子学与技术：英文版•Jan 1, 2005•0 citations