1×2抛物线型多模干涉功分器的设计  

Design of 1×2 parabolic multimode interference power splitter

作　　者：王浩宇 吕桓林[2] 梁艳峰 刘芳旭 刘硕 WANG Haoyu;LYU Huanlin;LIANG Yanfeng;LIU Fangxu;LIU Shuo(School of Information Science and Engineering,Dalian Polytechnic University,Dalian Liaoning 116034,China;Department of General Education,Dalian Polytechnic University,Dalian Liaoning 116034,China)

机构地区：[1]大连工业大学信息科学与工程学院,辽宁大连116034 [2]大连工业大学基础教学部,辽宁大连116034

出　　处：《激光杂志》2025年第3期40-44,共5页Laser Journal

基　　金：辽宁省教育厅基本科研项目(No.JYTM20230429)。

摘　　要：基于硅基槽波导结构的多模干涉耦合器受到了广泛的关注。提出了一种Si-SiO_(2)槽波导结构的1×2多模干涉功分器,将耦合区设计为抛物线型结构,输入/输出波导与耦合区之间引入锥形结构,且将输出端的锥形波导设计为不等宽结构,来改善附加损耗和不均衡度。通过本征模式展开法(EME),对器件进行仿真。结果表明,该器件可以完整地应用在C波段(1 530~1 565 nm),附加损耗仅有0.036 dB,具有良好的特性,可应用于光网络系统中。The utilization of silicon-based slot waveguide structures has garnered significant attention in recent years,particularly in the context of multimode interference couplers(MMIs).In this paper,we present the design of 1×2 parabolic multimode interference power splitter.The coupling zone is set to a parabolic structure,a tapered waveguide is used at the input/output of the coupler.An unequal-width design is used for tapered waveguide at the output,to reduce excess loss.The device is simulated using eigenmode expansion(EME) method.The presented results signify that the device can be fully applied in the C-band and the excess loss is only 0.036 dB,it has better characteristics and can be used in optical network systems.

关 键 词：功分器 槽波导 多模干涉耦合器 C波段 

分 类 号：TN249[电子电信—物理电子学]