掺镱相位位移光纤光栅的全光开关  

All-optical Switching in Yb-doped Phase-shifted Fiber Bragg Grating

作　　者：郭勇[1] 黄永清[1] 陈雪[1] 任晓敏[1] 

机构地区：[1]北京邮电大学电信工程学院,北京100876

出　　处：《中国激光》2002年第12期1093-1095,共3页Chinese Journal of Lasers

基　　金：国家自然科学基金 (编号 :6 0 0 770 2 7)资助项目

摘　　要：阐述了光纤光栅实现光开关的原理。从结构和材料两方面着手 ,采用掺镱的相位位移光纤光栅来降低对光功率的要求。应用传输矩阵法计算了相位位移光纤光栅的透射特性 ,表明相位位移光纤光栅用于光开关可降低光功率的要求。计算了不同抽运光功率下的消光比 ,结果表明利用掺镱的相位位移光纤光栅可以实现低抽运光功率的全光开关。The principle of all-optical switching in fiber Bragg grating (FBG) is illustrated. Yb-doped phase-shifted FBG is adopted to decrease the need for the power of pump from the aspects of structure and material. The transmittivity of phase-shifted FBG is computed using the method of transfer matrix. The result shows the availability of decreasing the power of pump by using the phase-shifted FBG. The extinction ratios are computed under different pump powers. Theoretically, low power all-optical switching in phase-shifted FBG is promising.

关 键 词：相位位移 掺镱光纤光栅 全光开关 非线性 

分 类 号：TN915.05[电子电信—通信与信息系统]