基于交叉波导无阻塞波长选择光子晶体路由器的优化设计  

Optimized Design of Non-blocking Wavelength-selective Photonic Crystal Router Based on Cross Waveguide Structure

作　　者：张冬雨 吴志远 张娟[1] 

机构地区：[1]上海大学特种光纤与光接入网国家重点实验室,上海200444

出　　处：《工业控制计算机》2025年第3期107-109,112,共4页Industrial Control Computer

摘　　要：提出了一种以常规功能的十字交叉波导替代X形交叉波导结构的优化方法,并设计了一种四端口无阻塞波长选择光子晶体路由器的优化结构。该路由器仅包含六个X形交叉波导结构的基本单元,无需环形谐振腔,整个结构呈中心对称分布。在无阻塞路由状态下,信噪比为19.31~25.50 dB;在波长选择路由状态下,插入损耗和串扰分别为0.25~0.68 dB和-39.44~-10.99 dB。与现有的应用于片上光网络的光子晶体路由器相比,该路由器兼具无阻塞路由和波长选择路由传输功能,而且由于不含环形谐振腔,还具有结构简单,尺寸小,易于实现的显著优势。此外,该路由器结构可扩展性良好,有利于实现更高阶的无阻塞光学路由系统,在片上光网络领域具有广阔的应用前景。In this paper,an optimization method for replacing the X-shaped cross waveguide structure with a conventional functional cross waveguide is proposed,and an optimized structure for a four-port non-blocking wavelength-selective photonic crystal router is designed.The router contains only six basic units of X-shaped cross waveguide structure without the need of a ring resonator,and the whole structure is distributed in a centrosymmetric manner.The signal-to-noise ratio is 19.31-25.50 dB in the non-blocking routing state,and the insertion loss and crosstalk are 0.25~0.68 dB and-39.44~-10.99 dB in the wavelength-selective routing state.Compared with the existing photonic crystal routers for optical networks-on-chip,this router has both non-blocking routing and wavelength-selective routing transmission functions.

关 键 词：光子晶体路由器 交叉波导 无阻塞 波长选择 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]