色散渐减光纤组成的环形镜对高阶孤子的理想压缩  

Optimal Compression of Higher-order Soliton with a Nonlinear Optical loop Mirror Constructed from Dispersion-decreasing Fiber

作　　者：张书敏[1] 吕福云[1] 董法杰[1] 董孝义[1] 

机构地区：[1]南开大学物理科学学院

出　　处：《光子学报》2005年第4期554-557,共4页Acta Photonica Sinica

基　　金：河北省教育厅科研计划(2001241);国家自然科学基金重点(No. 60137010);国家自然科学基金(No. 69977012)项目

摘　　要：利用数值模拟方法证明,采用色散渐减光纤组成的非线性光纤环形镜不仅可压缩高阶光孤子,而且能有效地消除压缩后脉冲的底座、提高光脉冲的输出能量 研究表明,对于一确定的色散渐减光纤,只要选取不同环形镜长度,即可对不同阶数的高阶孤子进行理想压缩 且孤子阶数越高,所需最佳环形镜长度越短、压缩后光脉冲的峰值强度越大、能量透射率越低 研究同时发现,环形镜的功率分束比存在一最佳值,在此值下所得压缩后的光脉冲不仅具有较大的峰值及能量透射率。A nonlinear optical loop mirror constructed from dispersion-decreasing fiber is proposed for simultaneous compression and pedestal suppression of higher-order soliton. Numerical simulation indicates that with the different soliton order, we can use the different fiber length for optimum compression. It is found that the higher of the soliton order, the shorter of the fiber length for optimal compression, with the greater peak intensity and the lower energy transmissivity. Our research results also show that the power-splitting ratio of the loop for optimal compression can be obtained, under this condition, the peak intensity and energy transmissivity of the pulse compressed is greater, and the pedestal is efficiently suppressed.

关 键 词：光脉冲压缩 色散渐减光纤 高阶孤子 光纤环形镜 

分 类 号：TN25[电子电信—物理电子学]