石墨烯材料因具有非常优异的电光特性而成为新一代光子器件中的重要材料。文章研究了石墨烯对于硅基、聚合物两种材料双矩形波导耦合特性的影响。研究结果表明, 在双波导耦合器件中增加一层石墨烯能够起到改变耦合长度的作用, 不同费米能级的石墨烯可以增大或减小双波导耦合器件的耦合长度。石墨烯对耦合特性的影响对于硅基和聚合物波导均适用。此研究结果对于基于石墨烯的波导器件的设计和应用具有一定的参考意义。

Graphene owns excellent electro-optical properties and becomes an important material in the new generation of photonic devices. In this paper, the effects of graphene materials on the coupling properties of two kinds of materials for Si/SiO2 and polymer were studied. The results show that the graphene can increase or decrease the coupling distance in the double waveguide coupling device, which is applicable for both silicon and polymer waveguides.