亮孤子在升余弦变迹光纤布拉格光栅中传输特性的数值分析  

Numerical analysis of transmission parameters of bright-solitons in raised cosine-apodized fiber Bragg gratings

作　　者：迎春[1] 敖特根[2] 林琳[1] 

机构地区：[1]内蒙古工业大学理学院物理系,内蒙古呼和浩特010051 [2]内蒙古化工职业学院,内蒙古呼和浩特010010

出　　处：《激光与红外》2009年第11期1170-1173,共4页Laser & Infrared

基　　金：内蒙古工业大学校基金项目(No.X200928)资助

摘　　要：在耦合模理论的基础上,运用有限差分法数值模拟了布拉格孤子在升余弦变迹光纤光栅中的传输以及孤子之间的相互作用。模拟结果表明,合适选择输入功率和初始脉宽等初始条件,可以实现升余弦变迹光纤光栅中孤子的稳定传输。输入两个孤子时,发现两个孤子之间的相互作用对它们的相对相位和相对振幅参数敏感。初始间隔较近的孤子对,随着它们之间的相对相位差和相对振幅参数的不同而发生相互吸引、相互排斥、交换能量等现象。With the framework of the coupled modes theory, transmission of the Bragg solitons and interaction of the Bragg solitons are simulated with the finite-difference scheme in raised cosine apodized-fiber bragg gratings. According to the numerical results, the raised cosine apodized-gratings lead the stable transmission of Bragg solitons under the condition of suitable choice of input power and the initial width of pulse. And interactions of two solitons rely on their relative phase and amplitude. The mutual attraction, rejection and energy exchange happened between two solitons with the different parameters of relative phase and amplitude.

关 键 词：布拉格孤子 升余弦变迹光栅 有限差分法 反常色散区 

分 类 号：TN253[电子电信—物理电子学]