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基于氮化镓的导模共振滤波器仿真分析
Authors
胡芳仁
诸波
赵昊
魏润润
Publication date
1 January 2014
Publisher
《光通信研究》编辑部
Doi
Cite
Abstract
根据严格耦合波理论和等效介质理论,提出了针对C波段、基于半导体材料氮化镓的亚波长导模共振滤波器结构及设计方法。详细探讨了在强调制光栅的高占空比作用下,光栅周期和入射波角度对滤波器反射谱共振波长的影响。在保持滤波效果为高衍射率(共振波长峰值反射率达到99.5%以上)、低旁带和窄线宽的条件下,利用其对入射波角度的敏感性,结合仿真数值提出了一种通过MEMS(微机电系统)平面反射镜调谐入射角角度(04.07°),从而线性地控制共振波长输出(调谐范围为36nm),实现峰值半宽高低于0.8nm的C波段可调滤波器
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Last time updated on 26/01/2023