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

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

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摘要 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. The method to pump the FBGT written 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 changes the refractive index and dispersion associated with the ^4I15/2-^4I12/2 transition in Er^3＋-doped optical fiber.The system equations are derived.The effects of pump power and doping concentration on the group velocity are discussed.

作者 ZHUO Zhong-chang SU Xue-mei YU Yong-sen ZHENG Wei ZHANG Yu-shu

机构地区 State Key Lab. College of Phys.

出处《Semiconductor Photonics and Technology》 CAS 2005年第3期145-149,共5页 半导体光子学与技术（英文版）

基金 National High Technology Research and Development Programof China(863 -307 -08 -07)

关键词光纤超光速传播 Bragg光波抽吸过程 Bragg grating Superluminal Pump

分类号 TN929.11 [电子电信—通信与信息系统]

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

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