基于掺铒光纤Bragg光栅的慢光和超光速传播的研究  

Study of Subluminal and Superluminal Propagation Based on Erbium-doped Fiber Bragg Grating

作　　者：国秀珍[1,2] 卓仲畅[1,2] 姚大立[1] 梁明[1] 

机构地区：[1]长春理工大学光电信息学院,长春130012 [2]吉林大学物理学院,长春130012

出　　处：《光电子技术》2010年第4期217-221,共5页Optoelectronic Technology

基　　金：国家自然科学基金项目(国际合作)(10811140325)

摘　　要：光的群速度控制一直是重大研究课题之一。基于光纤的超光速和光速减慢带来新的技术突破。简述了超光速和光速减慢技术的发展。提出一种利用光泵浦改变掺铒光纤Bragg光栅中探测光的群速度的方法。推导了系统方程。讨论了光泵浦功率、光纤Bragg光栅长度、掺杂Er3+离子浓度及光栅折射率调制幅度对群速度的影响。The group velocity control is one of significant research project.The subluminal and superluminal propagation based on the optical fiber has brought a new technological breakthrough.The development of the subluminal and superluminal propagation is presented.The method to pump the FBG written into an Er3＋-doped optical fiber is proposed to decrease or increase the group velocity of a probing pulse.The system equations are derived.The group velocity modification is numerically demonstrated and discussed with the effects of an optical pump power,fiber Bragg grating length,doping concentration of Er3＋ions,and modulation amplitude of the grating.

关 键 词：光纤光栅 慢光和超光速传播 光纤光学 

分 类 号：O482.3[理学—固体物理]