概括
研究人员使用低波长穿孔元材料波导 (SPMW) 开发了紧,低损失的波导交叉路口. 这些设备可实现高效的信号路由,损失最小,为先进的光学系统铺平了道路.
科学领域:
- 光子学和光学工程 光子学和光学工程
- 超材料是指一种超材料.
- 集成光学 集成光学 集成光学
背景情况:
- 波导交叉是光子集成电路中必不可少的组成部分.
- 现有的设计往往遭受高插入损失,大脚印,或有限的模式支持.
- 低波长结构为小型化和性能增强提供独特的光学特性.
研究的目的:
- 提出和演示超紧的,低损耗的波导交叉.
- 为了提高性能,利用低波长穿孔元材料波导 (SPMW).
- 在紧的交叉设计中实现多模式和双极化操作.
主要方法:
- 进行了数值模拟来设计和优化SPMW结构.
- 一个双排次波长孔阵列被集成到MMI合器中,以创建SPMW.
- 实验性制造和表征验证了波导交叉的模拟性能.
主要成果:
- 一个四模交叉实现插入损失 (ILs) 低至0.05dB在1550nm在14μmx14μm足迹.
- 一个双极化交叉证明了在10.8μm x 10.8μm面积的0.08 dB (TE0) 和0.07 dB (TM0) 的超低ILs.
- 实验结果证实了~90nm带宽的低IL (基本模式<0.57dB,双极化<0.28dB).
结论:
- SPMW 能够创建高效,紧的波导交叉路口.
- 展示的设备支持多模式和双极化操作,提供设计灵活性.
- 这些交叉点对先进的混合复杂化系统和其他集成光子应用有前途.
相关概念视频
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01:24Bridge rectifier
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01:18Clipper Circuit
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01:27Schottky Barrier Diode
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