一种紧密级联型1×N功率分配器的结构设计  

Structural design for compact cascaded 1×N optical power splitters

作　　者：张淼[1] 周林杰[1] 张效衡[1] 李新碗[1] 陈建平[1] 

机构地区：[1]上海交通大学区域光纤通信网与新型光通信系统国家重点实验室,上海200240

出　　处：《光通信技术》2013年第4期8-10,共3页Optical Communication Technology

基　　金：国家973项目(2011CB301700)资助;国家自然科学基金项目(61007039;61007052;61107041;61127016)资助

摘　　要：提出一种紧密级联型1×N光功率分配器的设计方案。该光功率分配器由N-1个1×2光功率分配器单元级联构成,相邻单元之间以单段圆弧波导衔接,末级单元与光纤接口间以两段圆弧衔接。通过采用遗传算法对结构参数进行优化,使得器件总长度最小,提高了集成度。BPM仿真结果表明,与传统功率分配器相比,该功率分配器的尺寸和插入损耗均较大减小。This paper propose a new design method and optimization strategy for a compact cascaded 1 x N optical power splitter. The splitter consists of N-1 11× 2 splitter unit-cells connected by bent waveguides, cell-output connection is achieved by two joint waveguide bends. An evolutionary algorithm is used for struc- ture optimization to minimize the device length to facilitate integration. BPM simulation results show that the device footprint and insertion loss are both reduced compared with a traditional optical power splitter design.

关 键 词：无源光器件 功率分配器 非线性优化 遗传算法 

分 类 号：TN491[电子电信—微电子学与固体电子学]