Bragg空芯光纤中的群速度超光速的理论探讨  

The Theory Anticipation of Super Velocity of Light in Hollow Bragg Fiber

作　　者：聂平[1] 郝瑞宇[1] 薛文瑞[1] 周国生[1] 

机构地区：[1]山西大学物理电子工程学院,山西太原030006

出　　处：《量子光学学报》2006年第2期98-101,共4页Journal of Quantum Optics

基　　金：山西省自然科学基金(No.20041036)

摘　　要：运用渐近法计算了多模B ragg光纤的场分布、有效折射率、各模式的色散参量、群速度及TE01模的能量速度。结果表明:各模式色散参量有正有负,但群速度都大于光速,而能量速度不大于光速。This paper makes nse of asymptotic method to calculate the Bragg fiber with multi-mode＇s field distribution, the effective hollow indices , the dispersion parameters of various modes, the group velocities and the energy velocities of the TE01 mode. The results show that the dispersion parameters of various modes are either positive or negative, but the group velocities are always greater than the light velocity. And the energy velocities are not greater than the light velocity.

关 键 词：BRAGG光纤 群速度 超光速 渐近法 色散参量 

分 类 号：O431[机械工程—光学工程]