The acoustooptic interaction in biconical optical fiber was analyzed based on coupled mode theory, and the relationship between perturbation period and flexural wave frequency was discussed.
利用耦合模理论分析了在双锥光纤耦合区中声光的相互作用，讨论了在不同耦合区半径下扰动周期与声波频率的关系。
We numerically show that there are many extremums in dependence of the propagation distance on the period lengths of perturbation.
数值模拟发现，在脉冲传输距离与扰动周期长度的关系中存在着一种多极值结构。
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