Theoretical investigation on the bistability of nonlinear Bragg gratings
Theoretical investigation on the bistability of nonlinear Bragg gratings
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DOI：
10.7498/aps.56.2256
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发表时间：
2007-04
期刊：
影响因子：
--
通讯作者：
Tian Jian-feng;Wu Zhengmao;Xia Guang-qiong
中科院分区：
文献类型：
--
作者：
Tian Jian-feng;Wu Zhengmao;Xia Guang-qiong
基于耦合模理论，从椭圆积分的角度对非线性布拉格光栅的双稳态特性进行了理论分析。给出了输入光强与输出光强之间关系的解析表达式。在此基础上，数值研究了双稳态特性与光栅内参数的关系。结果表明：NLBG双稳特性不仅对耦合系数与光栅长度的乘积具有整体依赖性，而且对耦合系数和光栅长度具有单一依赖性.
Based on the coupled mode theory, the bistability performance of nonlinear Bragg gratings is analyzed theoretically in terms of elliptic integration. The analytical expression describing the relation between the input intensity and the output intensity is presented. Consequently, the dependence of the bistability on the gratings inner parameters is investigated numerically. The results show that, the bistability performance of the nonlinear Bragg gratings depends not only on the product of the couple coefficient and the grating length but also on the couple coefficient and the gratings length respectively.